Found 36 papers in cond-mat We consider the properties of the random regular graph with node degree $d$
perturbed by chemical potentials $\mu_k$ for a number of short $k$-cycles. We
analyze both numerically and analytically the phase diagram of the model in the
$(\mu_k,d)$ plane. The critical curve separating the homogeneous and
clusterized phases is found and it is demonstrated that the clusterized phase
itself generically is separated as the function of $d$ into the phase with
ideal clusters and phase with coupled ones when the continuous spectrum gets
formed. The eigenstate spatial structure of the model is investigated and it is
found that there are localized scar-like states in the delocalized part of the
spectrum, that are related to the topologically equivalent nodes in the graph.
We also reconsider the localization of the states in the non-perturbative band
formed by eigenvalue instantons and find the semi-Poisson level spacing
distribution. The Anderson transition for the case of combined ($k$-cycle)
structural and diagonal (Anderson) disorders is investigated. It is found that
the critical diagonal disorder gets reduced sharply at the clusterization phase
transition, but does it unevenly in non-perturbative and mid-spectrum bands,
due to the scars, present in the latter. The applications of our findings to
$2$d quantum gravity are discussed.
Non-Abelian phases are among the most highly-prized but elusive states of
matter. We show that upstream noise measurements can identify the putative
non-Abelian fractional quantum Hall plateaus at filling factors
$\nu=\frac{12}{5}$ or in any half-filled Landau level. Interfacing these states
with any readily-available Abelian state yields a binary outcome of upstream
noise or no noise. Judicious choices of the Abelian states can produce a
sequence of yes--no outcomes that fingerprint the possible non-Abelian phase by
ruling out its competitors.
We demonstrate that a single layer of graphene subject to a superlattice
potential nearly commensurate to a $\sqrt{3} \times \sqrt{3}$ supercell exactly
maps to the chiral model of twisted bilayer graphene, albeit with half as many
degrees of freedom. We comprehensively review the properties of this
``half-chiral model,'' including the interacting phases stabilized at integer
fillings and the effects of substrate-induced symmetry breaking. We list
candidate substrates that could produce a superlattice potential on graphene
with the correct periodicity to access the flat band limit. Experimental
measurements on a half-chiral moire heterostructure, in which valley-skyrmions
cannot form, could yield insights on the physics they mediate in twisted
bilayer graphene.
We study $4$-dimensional $SU(N)\times U(1)$ gauge theories with a single
massless Dirac fermion in the $2$-index symmetric/antisymmetric representations
and show that they are endowed with a noninvertible $0$-form $\widetilde
{\mathbb Z}_{2(N\pm 2)}^{\chi}$ chiral symmetry along with a $1$-form $\mathbb
Z_N^{(1)}$ center symmetry. By using the Hamiltonian formalism and putting the
theory on a spatial three-torus $\mathbb T^3$, we construct the non-unitary
gauge invariant operator corresponding to $\widetilde {\mathbb Z}_{2(N\pm
2)}^{\chi}$ and find that it acts nontrivially in sectors of the Hilbert space
characterized by selected magnetic fluxes. When we subject $\mathbb T^3$ to
$\mathbb Z_N^{(1)}$ twists, for $N$ even, in selected magnetic flux sectors,
the algebra of $\widetilde {\mathbb Z}_{2(N\pm 2)}^{\chi}$ and $\mathbb
Z_N^{(1)}$ fails to commute by a $\mathbb Z_2$ phase. We interpret this
noncommutativity as a mixed anomaly between the noninvertible and the $1$-form
symmetries. The anomaly implies that all states in the torus Hilbert space with
the selected magnetic fluxes exhibit a two-fold degeneracy for arbitrary
$\mathbb T^3$ size. The degenerate states are labeled by discrete electric
fluxes and are characterized by nonzero expectation values of condensates.
Motivated by the recent experimental realization of ABCB stacked tetralayer
graphene [Wirth et al., ACS Nano 16, 16617 (2022)], we study correlated
phenomena in moir\'e-less graphene tetralayers for realistic interaction
profiles using an orbital resolved random phase approximation approach. We
demonstrate that magnetic fluctuations originating from local interactions are
crucial close to the van Hove singularities on the electron- and hole-doped
side promoting layer selective ferrimagnetic states. Spin fluctuations around
these magnetic states enhance unconventional spin-triplet, valley-singlet
superconductivity with $f$-wave symmetry due to intervalley scattering. Charge
fluctuations arising from long range Coulomb interactions promote doubly
degenerate $p$-wave superconductivity close to the van Hove singularities. At
the conduction band edge of ABCB graphene, we find that both spin and charge
fluctuations drive $f$-wave superconductivity. Our analysis suggests a strong
competition between superconducting states emerging from long- and short-ranged
Coulomb interactions and thus stresses the importance of microscopically
derived interaction profiles to make reliable predictions for the origin of
superconductivity in graphene based heterostructures.
We report calculations of terahertz ellipticities in large-angle,
21.79$^\circ$ and 38.21$^\circ$, commensurate twisted bilayer graphene, and
predict values as high as 1.5 millidegrees in the terahertz region for this
non-magnetic material. This terahertz circular dichroism exhibits a magnitude
comparable to that of chiral materials in the visible region. At low
frequencies, the dichroic response is mediated by strong interlayer
hybridization, which allows us to probe the symmetry and strength of these
couplings. Crucially, lateral interlayer translation tunes this response, in
contrast to small twist angle bilayer graphene's near invariance under under
interlayer translation. We examine the magnitude and phase of the interlayer
coupling for all structures containing fewer than 400 atoms per unit cell.
Finally, we find that the dichroism can be manipulated by applying an electric
field or with doping.
Most high-$T_c$ superconductors are spatially inhomogeneous. Usually, this
heterogeneity originates from the interplay of various types of electronic
ordering. It affects various superconducting properties, such as the transition
temperature, magnetic upper critical field, critical current, etc. In this
paper we analyze the parameters of spatial phase segregation during the
first-order transition between superconductivity (SC) and a charge- or
spin-density wave state in quasi-one-dimensional metals with imperfect nesting,
typical to organic superconductors. An external pressure or another driving
parameter increases the transfer integrals in electron dispersion, which only
slightly affects SC but violates the Fermi-surface nesting and suppresses the
density wave (DW). At a critical pressure $P_{c}$ the transition from DW to SC
occurs. We estimate the characteristic size of SC islands during this phase
transition in organic metals in two ways. Using the Ginzburg-Landau expansion
we analytically obtain a lower bound for the size of SC domains. To estimate
more specific interval of possible size of the SC islands in (TMTSF)$_2$PF$_6$
samples we perform numerical calculations of the percolation probability via SC
domains and compare it with experimental resistivity data. This helps to
develop a consistent microscopic description of SC spatial heterogeneity in
various organic superconductors.
Analytical calculations and micromagnetic simulations are used to determine
the Berry curvature and topological Hall effect (THE) due to conduction
electrons in small ferromagnetic particles. Our focus is on small particles of
nonellipsoidal shapes, where noncoplanar spin structures yield a nonzero
topological Hall signal quantified by the skyrmion number Q. We consider two
mechanisms leading to noncoplanarity in aligned nanoparticles, namely
flower-state spin configurations due to stray fields near corners and edges,
and curling-type magnetostatic selfinteractions. In very small particles, the
reverse magnetic fields enhance Q due to the flower state until the reversal
occurs, whereas for particles with a radius greater than coherence radius Rcoh
the Q jumps to a larger value at the nucleation field representing the
transition from the flower state to the curling state. We calculate the
Skyrmion density (average Berry curvature) from these spin structures as a
function of particle size and applied magnetic field. Our simulation results
agree with analytical calculations for both flower state and flux closure
states. We showed the presence of Berry curvature in small particles as long as
the size of the particle is less than the single domain limit. Using magnetic
force microscopy (MFM), we also showed that in a nanodot of Co with a suitable
size, a magnetic vortex state with perpendicular (turned-up) magnetization at
the core is realized which can be manifested for Berry curvature and emergent
magnetic field in confined geometries for single domain state at room
temperature.
The study of quantum state transfer has led to a variety of research efforts
utilizing quantum simulators. By exploiting the tunability of the qubit
frequency and qubit-qubit coupling, a superconducting qubit chain can simulate
various topological band models. In our study, we demonstrate that a spin-up
state can be transported along a topological qubit chain by modulating the
coupling strengths and the qubit frequencies. We here propose another more
straightforward approach to theoretically interpret this state transfer
process. We show that the Hilebert space of the qubit chain can be restricted
into the subspace of the only two edge states when investigating this process,
and the Hamiltonian can degenerate to a two-state Landau-Zener (LZ) model.
Therefore the state transfer process in this topological qubit chain is
equivalent to the same process through the adiabatic passage of the LZ model.
Further more, we show how to use this approach to generalize the state transfer
process from one-qubit Fock state to two-qubit Bell state.
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) remain a topic
of immense interest. Specifically, given their low operational switching costs,
they find many niche applications in new computing architectures with the
promise of continued miniaturization. However, challenges lie in Back End of
Line (BEOL) integration temperature and time compliance regarding current
requirements for crystal growth. Additionally, deleterious and time-consuming
transfer processes and multiple steps involved in channel/contact engineering
can cripple device performance. This work demonstrates kinetics-governed
in-situ growth regimes (surface or edge growth from gold) of WSe2 and provides
a mechanistic understanding of these regimes via energetics across various
material interfaces. As a proof-of-concept, field effect transistors (FET) with
an in-situ grown WSe2 channel across Au contacts are fabricated, demonstrating
a 2D semiconductor transistor via a transfer-free method within the 450-600 C
2h-time window requirement BEOL integration. We leverage directional edge
growth to fabricate contacts with robust thickness-dependent Schottky-to-Ohmic
behavior. By transitioning between Au and SiO2 growth substrates in situ, this
work achieves strain-induced subthreshold swing of 140 mV/decade, relatively
high mobility of 107 +- 19 cm2V-1s-1, and robust ON/OFF ratios 10^6 in the
fabricated FETs.
We investigate the effect of thermal fluctuations on the mechanical
properties of nanotubes by employing tools from statistical physics. For 2D
sheets it was previously shown that thermal fluctuations effectively
renormalize elastic moduli beyond a characteristic temperature-dependent
thermal length scale (a few nanometers for graphene at room temperature), where
the bending rigidity increases, while the in-plane elastic moduli reduce in a
scale-dependent fashion with universal power law exponents. However, the
curvature of nanotubes produces new phenomena. In nanotubes, competition
between stretching and bending costs associated with radial fluctuations
introduces a characteristic elastic length scale, which is proportional to the
geometric mean of the radius and effective thickness. Beyond elastic length
scale, we find that the in-plane elastic moduli stop renormalizing in the axial
direction, while they continue to renormalize in the circumferential direction
beyond the elastic length scale albeit with different universal exponents. The
bending rigidity, however, stops renormalizing in the circumferential direction
at the elastic length scale. These results were verified using molecular
dynamics simulations.
We investigate the instability toward a skyrmion crystal (SkX) in
noncentrosymmetric cubic magnets with an emphasis on a comparison between point
groups $(O,T)$ and $T_{\rm d}$. By constructing low-temperature magnetic phase
diagrams under an external magnetic field for three directions based on
numerically simulated annealing, we find that the system under the point group
$(O,T)$ exhibits different two types of SkXs depending on the field direction,
while that under $T_{\rm d}$ does not show such an instability. The difference
between them is understood from the difference in the momentum-dependent
Dzyaloshinskii-Moriya interaction under each point group. Meanwhile, we show
that the system under $T_{\rm d}$ leads to the SkX instability by considering
an additional effect of the uniaxial strain, which lowers the symmetry to
$D_{\rm 2d}$. We obtain two different SkXs: N\'eel-type and anti-type SkXs, the
former of which is stabilized in the presence of the interactions at the
three-dimensional ordering wave vectors. The present results provide rich
topological spin textures in the three-dimensional systems, which are sensitive
to the magnetic-field direction and point-group symmetry.
Using a diffusion Monte Carlo (DMC) technique, we calculated the phase
diagrams of $^4$He and H$_2$ adsorbed on a single (5,5) carbon nanotube, one of
the narrowest that can be obtained experimentally. For a single monolayer, when
the adsorbate density increases, both species undergo a series of first order
solid-solid phase transitions between incommensurate arrangements. Remarkably,
the $^4$He lowest-density solid phase shows supersolid behavior in contrast
with the normal solid that we found for H$_2$. The nature of the second-layer
is also different for both adsorbates. Contrarily to what happens on graphite,
the second-layer of $^4$He on that tube is a liquid, at least up to the density
corresponding to a third-layer promotion on a flat substrate. However, the
second-layer of H$_2$ is a solid that, at its lowest stable density, has a
small but observable superfluid fraction.
Magnonics or magnon spintronics is an emerging field focusing on generating,
detecting, and manipulating magnons. As charge-neutral quasi-particles, magnons
are promising information carriers because of their low energy dissipation and
long coherence length. In the past decade, topological phases in magnonics have
attracted intensive attention due to their fundamental importance in
condensed-matter physics and potential applications of spintronic devices. In
this review, we mainly focus on recent progress in topological magnonics, such
as the Hall effect of magnons, magnon Chern insulators, topological magnon
semimetals, etc. In addition, the evidence supporting topological phases in
magnonics and candidate materials are also discussed and summarized. The aim of
this review is to provide readers with a comprehensive and systematic
understanding of the recent developments in topological magnonics.
We analyze the magneto-optical conductivity (and related magnitudes like
transmittance and Faraday rotation of the irradiated polarized light) of some
elemental two-dimensional Dirac materials of group IV (graphene analogues,
buckled honeycomb lattices, like silicene, germanene, stannane, etc.), group V
(phosphorene), and zincblende heterostructures (like HgTe/CdTe quantum wells)
near the Dirac and gamma points, under out-of-plane magnetic and electric
fields, to characterize topological-band insulator phase transitions and their
critical points. We provide plots of the Faraday angle and transmittance as a
function of the polarized light frequency, for different external electric and
magnetic fields, chemical potential, HgTe layer thickness and temperature, to
tune the material magneto-optical properties. We have shown that
absortance/transmittance acquires extremal values at the critical point, where
the Faraday angle changes sign, thus providing fine markers of the topological
phase transition.
Zincblende copper iodide has attracted significant interest as a potential
material for transparent electronics, thanks to its exceptional light
transmission capabilities in the visible range and remarkable hole
conductivity. However, remaining challenges hinder the utilization of copper
iodide's unique properties in real-world applications. To address this,
chalcogen doping has emerged as a viable approach to enhance the hole
concentration in copper iodide. In search of further strategies to improve and
tune the electronic properties of this transparent semiconductor, we
investigate the ternary phase diagram of copper and iodine with sulphur or
selenium by performing structure prediction calculations using the minima
hopping method. As a result, we find 11 structures located on or near the
convex hull, 9 of which are unreported. Based on our band structure
calculations, it appears that sulphur and selenium are promising candidates for
achieving ternary semiconductors suitable as $p$-type transparent conducting
materials. Additionally, our study reveals the presence of unreported phases
that exhibit intriguing topological properties. These findings broaden the
scope of potential applications for these ternary systems, highlighting the
possibility of harnessing their unique electronic characteristics in diverse
electronic devices and systems.
Strong electron-electron Coulomb interactions in materials can lead to a vast
range of exotic many-body quantum phenomena, including Mott metal-insulator
transitions, magnetic order, quantum spin liquids, and unconventional
superconductivity. These many-body phases are strongly dependent on band
occupation and can hence be controlled via the chemical potential. Flat
electronic bands in two-dimensional (2D) and layered materials such as the
kagome lattice, enhance strong electronic correlations. Although theoretically
predicted, correlated-electron phases in monolayer 2D metal-organic frameworks
(MOFs) - which benefit from efficient synthesis protocols and tunable
properties - with a kagome structure have not yet been realised experimentally.
Here, we synthesise a 2D kagome MOF comprised of 9,10-dicyanoanthracene
molecules and copper atoms on an atomically thin insulator, monolayer hexagonal
boron nitride (hBN) on Cu(111). Scanning tunnelling microscopy (STM) and
spectroscopy reveal an electronic energy gap of ~200 meV in this MOF,
consistent with dynamical mean-field theory predictions of a Mott insulating
phase. By tuning the electron population of kagome bands, via either
template-induced (via local work function variations of the hBN/Cu(111)
substrate) or tip-induced (via the STM probe) gating, we are able to induce
Mott metal-insulator transitions in the MOF. These findings pave the way for
devices and technologies based on 2D MOFs and on electrostatic control of
many-body quantum phases therein.
The phenomenon of quantum entanglement underlies several important protocols
that enable emerging quantum technologies. Being an extremely delicate resource
entangled states easily get perturbed by their external environment, and thus
makes the question of entanglement certification immensely crucial for
successful implementation of the protocols involving entanglement. In this
work, we propose a set of entanglement criteria for multi-qubit systems that
can be easily verified by measuring certain thermodynamic quantities. In
particular, the criteria depend on the difference in optimal works extractable
from an isolated quantum system under global and local interactions,
respectively. As a proof of principle, we demonstrate the proposed
thermodynamic criteria on nuclear spin registers of up to 10 qubits using
Nuclear Magnetic Resonance architecture. We prepare noisy
Greenberger-Horne-Zeilinger class of states in star-topology systems and
certify their entanglement through our proposed criteria. We also provide
elegant means of entanglement certification in many-body systems when only
partial or even no knowledge about the state is available.
Magnetic solitons are promising for applications due to their intrinsic
properties such as small size, topological stability, ultralow power
manipulation and potentially ultrafast operations. To date, research has
focused on the manipulation of skyrmions, domain walls, and vortices by applied
currents. The discovery of new methods to control magnetic parameters, such as
the interfacial Dzyaloshinskii-Moriya interaction (DMI) by strain, geometry
design, temperature gradients, and applied voltages promises new avenues for
energetically efficient manipulation of magnetic structures. The latter has
shown significant progress in 2d material-based technology. In this work, we
present a comprehensive study using numerical and analytical methods of the
stability and motion of different magnetic textures under the influence of DMI
gradients. Our results show that under the influence of linear DMI gradients,
N\'eel and Bloch-type skyrmions and radial vortex exhibit motion with finite
skyrmion Hall angle, while the circular vortex undergoes expulsion dynamics.
This work provides a deeper and crucial understanding of the stability and
gradient-driven dynamics of magnetic solitons, and paves the way for the design
of alternative low-power sources of magnetization manipulation in the emerging
field of 2d materials.
We theoretically study the spin Hall effect in a simple tight-binding model
of stacked-kagome Weyl semimetal Co3Sn2S2 with ferromagnetic ordering. We focus
on the two types of the spin Hall current: one flowing in the in-plane
direction with respect to the kagome lattice (in-plane spin Hall current), and
one flowing in the stacking direction (out-of-plane spin Hall current). We show
the spin Hall conductivities for those spin currents drastically change
depending on the direction of the magnetic moment. Especially, the out-of-plane
spin Hall current may induce surface spin accumulation, which are useful for
the perpendicular magnetization switching via spin-orbit torque.
Topological surface states of Bi-doped PbSb2Te4 [Pb(Bi0.20Sb0.80)2Te4] are
investigated through analyses of quasiparticle interference (QPI) patterns
observed by scanning tunneling microscopy. Interpretation of the experimental
QPI patterns in the reciprocal space is achieved by numerical QPI simulations
using two types of surface density of states produced by density functional
theory calculations or a kp surface state model. We found that the Dirac point
(DP) of the surface state appears in the bulk band gap of this material and,
with the energy being away from the DP, the isoenergy contour of the surface
state is substantially deformed or separated into segments due to hybridization
with bulk electronic states. These findings provide a more accurate picture of
topological surface states, especially at energies away from the DP, providing
valuable insight into the electronic properties of topological insulators.
Half-metals have been envisioned as active components in spintronic devices
by virtue of their completely spin-polarized electrical currents. Actual
materials hosting half-metallic phases, however, remain scarce. Here, we
predict that recently fabricated heterojunctions of zigzag nanoribbons embedded
in two-dimensional hexagonal boron nitride are half-semimetallic, featuring
fully spin-polarized Dirac points at the Fermi level. The half-semimetallicity
originates from the transfer of charges from hexagonal boron nitride to the
embedded graphene nanoribbon. These charges give rise to opposite energy shifts
of the states residing at the two edges while preserving their intrinsic
antiferromagnetic exchange coupling. Upon doping, an
antiferromagnetic-to-ferrimagnetic phase transition occurs in these
heterojunctions, with the sign of the excess charge controlling the spatial
localization of the net magnetic moments. Our findings demonstrate that such
heterojunctions realize tunable one-dimensional conducting channels of
spin-polarized Dirac fermions that are seamlessly integrated into a
two-dimensional insulator, thus holding promise for the development of
carbon-based spintronics.
Mixing theoretical topological structures with cutting-edge simulation
methods, a recent study in Nature Communications has finally confirmed the
existence of topological defects in glasses and their crucial role for
plasticity.
Using Landau-Ginzburg-Devonshire (LGD) phenomenological approach we analyze
the bending-induced re-distribution of electric polarization and field, elastic
stresses and strains inside ultrathin layers of van der Waals ferrielectrics.
We consider a CuInP2S6 (CIPS) thin layer with fixed edges and suspended central
part, the bending of which is induced by external forces. The unique aspect of
CIPS is the existence of two ferrielectric states, FI1 and FI2, corresponding
to big and small polarization values, which arise due to the specific four-well
potential of the eighth-order LGD functional. When the CIPS layer is flat, the
single-domain FI1 state is stable in the central part of the layer, and the FI2
states are stable near the fixed edges. With an increase of the layer bending
below the critical value, the sizes of the FI2 states near the fixed edges
decreases, and the size of the FI1 region increases. When the bending exceeds
the critical value, the edge FI2 states disappear being substituted by the FI1
state, but they appear abruptly near the inflection regions and expand as the
bending increases. The bending-induced isostructural FI1-FI2 transition is
specific for the bended van der Waals ferrielectrics described by the eighth
(or higher) order LGD functional with consideration of linear and nonlinear
electrostriction couplings. The isostructural transition, which is revealed in
the vicinity of room temperature, can significantly reduce the coercive voltage
of ferroelectric polarization reversal in CIPS nanoflakes, allowing for the
curvature-engineering control of various flexible nanodevices.
The main aim of the present paper is to define an active matter in a quantum
framework and investigate difference and commonalities of quantum and classical
active matters. Although the research field of active matter has been expanding
wider and wider, most research is conducted in classical systems; on the
contrary, there is no universal theoretical framework for quantum active
matter. We here propose a truly quantum active-matter model with a
non-Hermitian quantum walk and show numerical results in one- and
two-dimensional systems. We aim to reproduce similar results that Schweitzer
\textit{et al.} obtained with their classical active Brownian particle; that
is, the Brownian particle, with a finite energy take-up, becomes active and
climbs up a potential wall. We realize such a system with non-Hermitian quantum
walks. We introduce new internal states, the ground state and the excited
state, and a new non-Hermitian operator $N(g)$ for an asymmetric transition
between both states. The non-Hermiticity parameter $g$ promotes transition to
the excited state and hence the particle takes up energy from the environment.
We realize a system without momentum conservation by manipulating a parameter
$\theta$ for the coin operator for a discrete-time quantum walk; we utilize the
property that the continuum limit of a one-dimensional discrete-time quantum
walk gives the Dirac equation with its mass proportional to the parameter
$\theta$. With our quantum active particle, we successfully observe that the
movement of the quantum walker becomes more active in a non-trivial way as we
increase the non-Hermiticity parameter $g$, which is similar to the classical
active Brownian particle. Meanwhile, we also observe unique features of quantum
walks, namely, ballistic propagation of peaks (1D) and the walker staying on
the constant energy plane (2D).
Kagome materials have emerged as a setting for emergent electronic phenomena
that encompass different aspects of symmetry and topology. It is debated
whether the XV$_6$Sn$_6$ kagome family (where X is a rare earth element), a
recently discovered family of bilayer kagome metals, hosts a topologically
non-trivial ground state resulting from the opening of spin-orbit coupling
gaps. These states would carry a finite spin-Berry curvature, and topological
surface states. Here, we investigate the spin and electronic structure of the
XV$_6$Sn$_6$ kagome family. We obtain evidence for a finite spin-Berry
curvature contribution at the center of the Brillouin zone, where the nearly
flat band detaches from the dispersing Dirac band because of spin-orbit
coupling. In addition, the spin-Berry curvature is further investigated in the
charge density wave regime of ScV$_6$Sn$_6$, and it is found to be robust
against the onset of the temperature-driven ordered phase. Utilizing the
sensitivity of angle resolved photoemission spectroscopy to the spin and
orbital angular momentum, our work unveils the spin-Berry curvature of
topological kagome metals, and helps to define its spectroscopic fingerprint.
Recent scanning tunneling spectroscopy along crystalline domain-walls
associated with a half unit cell shift have revealed sub-gap density of states
that are expected to arise from helical Majorana modes. Such propagating
Majorana modes have been proposed to exist on the surface state of topological
materials similar to FeTe$_{\text{1-x}}$Se$_\text{x}$ (FTS) along line defects
where the superconducting order parameter (OP) is phase shifted by $\pi$. Here
we show that such a $\pi$ shift in theOP across the half unit-cell shift
domain-wall can occur in quite conventional tight-binding models of
superconducting FTS as a result of the $s_{\pm}$ pairing symmetry across
$\Gamma$ and M pockets of FTS. The resultant inter-pocket transmission between
$\Gamma$ and M pockets is found to be typically larger than the intra-pocket
transmissions. We confirm these conclusions with a calculation based on the
Bogoliubov-de-Gennes (BdG) formalism which shows that a $\pi$-shift across the
domain-wall is favored for a large range of model parameters for FTS. We
discuss parameter regimes where this mechanism might explain the STS
experiments as well as propose to test this explanation by searching for
evidence of large inter-pocket scattering.
We identify a new scenario for dynamical phase transitions associated with
time-integrated observables occurring in diffusive systems described by the
macroscopic fluctuation theory. It is characterized by the pairwise meeting of
first- and second-order bias-induced phase transition curves at two tricritical
points. We formulate a simple, general criterion for its appearance and derive
an exact Landau theory for the tricritical behavior. The scenario is
demonstrated in three examples: the simple symmetric exclusion process biased
by an activity-related structural observable; the Katz-Lebowitz-Spohn lattice
gas model biased by its current; and in an active lattice gas biased by its
entropy production.
Non-Hermitian topological band structures such as symmetry-protected
exceptional rings (SPERs) can emerge for systems described by the generalized
eigenvalue problem (GEVP) with Hermitian matrices. In this paper, we
numerically analyze a photonic crystal with negative index media, which is
described by the GEVP with Hermitian matrices. Our analysis using COMSOL
Multiphysics demonstrates that a SPER emerges for photonic crystals composed of
split-ring resonators and metal-wire structures. We expect that the above SPER
can be observed in experiments as it emerges at a finite frequency.
In this paper, we develop a theory of edge effects in graphene for its
applications to nanoantennas in the terahertz, infrared, and visible frequency
ranges. Its characteristic feature is selfconsistence reached due the
formulation in terms of dynamical conductance instead of ordinary used surface
conductivity. The physical model of edge effects is based on using the concept
of Dirac fermions. The surface conductance is considered as a general
susceptibility and is calculated via the Kubo approach. In contrast with
earlier models, the surface conductance becomes nonhomogeneous and nonlocal.
The spatial behavior of the surface conductance depends on the length of the
sheet and the electrochemical potential. Results of numerical simulations are
presented for lengths in the range of 2.1-800 nm and electrochemical potentials
ranging between 0.1-1.0 eV. It is shown that if the length exceeded 800 nm, our
model agrees with the classical Drude conductivity model with a relatively high
degree of accuracy. For rather short lengths, the conductance usually exhibits
spatial oscillations, which absent in conductivity and strongly affect the
properties of graphene based antennas. The period and amplitude of such spatial
oscillations, strongly depend on the electrochemical potential. The new theory
opens the way for realizing electrically controlled nanoantennas by changing
the electrochemical potential may of the gate voltage. The obtained results may
be applicable for the design of carbon based nanodevices in modern quantum
technologies.
Floquet topological systems have been shown to exhibit features not commonly
found in conventional topological systems such as topological phases
characterized by arbitrarily large winding numbers. This is clearly highlighted
in the quantum double kicked rotor coupled to spin-1/2 degrees of freedom
[Phys. Rev. A 97, 063603 (2018)] where large winding numbers are achieved by
tuning the kick strengths. Here, we extend the results to the spin-1/2 quantum
double kicked top and find not only does the system exhibit topological regions
with large winding numbers, but a large number of them are needed to fully
characterize the topology of the Bloch sphere of the top for general kick
strengths. Due to the geometry of the Bloch sphere it is partitioned into
regions with different topology and the boundaries separating them are home to
0 and $\pi$ quasienergy bound states. We characterize the regions by comparing
local versions of the mean field, quantum and mean chiral displacement winding
numbers. We also use a probe state to locate the boundaries by observing
localization as the state evolves when it has a large initial overlap with
bound states. Finally, we briefly discuss the connections between the spin-1/2
quantum double kicked top and multi-step quantum walks, putting the system in
the context of some current experiments in the exploration of topological
phases.
Spin-triplet superconductors represent a fascinating platform with which to
explore the technological potential of emergent topological excitations. While
candidate triplet superconductors are rare, one especially promising material
is the heavy fermion paramagnet uranium ditelluride (UTe$_2$), which has
recently been found to exhibit numerous characteristics of an unconventional
spin-triplet pairing state. To date, efforts to understand the microscopic
details of superconductivity in UTe$_2$ have been severely impeded by
uncertainty regarding the underlying electronic structure. Here, we directly
probe the Fermi surface of UTe$_2$ by measuring magnetic quantum oscillations
in ultra-pure crystals, as evidenced by their high superconducting transition
temperature $T_\text{c} \approx$ 2.1 K and residual resistivity ratio (RRR)
$\approx$ 900. We find an angular profile of quantum oscillatory frequency and
amplitude that is characteristic of a quasi-2D Fermi surface, exhibiting heavy
effective masses up to 78(2) $m_e$ owing to strong correlations. We performed
Fermi surface simulations guided by these data, yielding excellent
correspondence between quantum oscillation measurements and our resultant Fermi
surface model, which consists of two cylindrical sections of electron- and
hole-type respectively. A comparison between the density of states at the Fermi
level inferred from the quantum oscillations, and the normal state Sommerfeld
coefficient obtained from specific heat measurements, gives excellent agreement
with our Fermi surface model. Additionally, we find that both cylindrical Fermi
sheets possess negligible corrugation, which may allow for their near-nesting
and therefore promote magnetic fluctuations that enhance the triplet pairing
mechanism. Our results place strong constraints on the possible symmetry of the
superconducting order parameter in UTe$_2$.
We study theoretically electron interference in a Mach--Zehnder-like geometry
formed by four zigzag graphene nanoribbons (ZGNRs) arranged in parallel pairs,
one on top of the other, such that they form intersection angles of 60$^\circ$.
Depending on the interribbon separation, each intersection can be tuned to act
either as an electron beam splitter or as a mirror, enabling tuneable circuitry
with interfering pathways. Based on the mean-field Hubbard model and Green's
function techniques, we evaluate the electron transport properties of such
8-terminal devices and identify pairs of terminals that are subject to
self-interference. We further show that the scattering matrix formalism in the
approximation of independent scattering at the four individual junctions
provides accurate results as compared with the Green's function description,
allowing for a simple interpretation of the interference process between two
dominant pathways. This enables us to characterize the device sensitivity to
phase shifts from an external magnetic flux according to the Aharonov--Bohm
effect as well as from small geometric variations in the two path lengths. The
proposed devices could find applications as magnetic field sensors and as
detectors of phase shifts induced by local scatterers on the different
segments, such as adsorbates, impurities or defects. The setup could also be
used to create and study quantum entanglement.
We propose a model for a molecular motor in a molecular electronic junction
driven by a natural manifestation of Landauer's blowtorch effect. The effect
emerges via the interplay of the electronic friction and diffusion
coefficients, each calculated quantum mechanically using nonequilibrium Green's
functions, within a semi-classical Langevin description of the rotational
dynamics. The motor functionality is analysed through numerical simulations
where the rotations exhibit a directional preference according to the intrinsic
geometry of the molecular configuration. The proposed mechanism for motor
function is expected to be ubiquitous for a range of molecular geometries
beyond the one examined here.
To aid in the automation of inorganic materials synthesis, we introduce an
algorithm (ARROWS3) that guides the selection of precursors used in solid-state
reactions. Given a target phase, ARROWS3 iteratively proposes experiments and
learns from their outcomes to identify an optimal set of precursors that leads
to maximal yield of that target. Initial experiments are selected based on
thermochemical data collected from first principles calculations, which enable
the identification of precursors exhibiting large thermodynamic force to form
the desired target. Should the initial experiments fail, their associated
reaction paths are determined by sampling a range of synthesis temperatures and
identifying their products. ARROWS3 then uses this information to pinpoint
which intermediate reactions consume most of the available free energy
associated with the starting materials. In subsequent experimental iterations,
precursors are selected to avoid such unfavorable reactions and therefore
maintain a strong driving force to form the target. We validate this approach
on three experimental datasets containing results from more than 200 distinct
synthesis procedures. When compared to several black-box optimization
algorithms, ARROWS3 identifies the most effective set of precursors for each
target while requiring substantially fewer experimental iterations. These
findings highlight the importance of using domain knowledge in the design of
optimization algorithms for materials synthesis, which are critical for the
development of fully autonomous research platforms.
Topological semimetal materials have become a research hotspot due to their
intrinsic strong spin-orbit coupling which leads to large charge-to-spin
conversion efficiency and novel transport behaviors. In this work, we have
observed a bilinear magnetoelectric resistance (BMER) of up to 0.1 nm2A-1Oe-1
in a singlelayer of sputtered semimetal Pt3Sn at room temperature. Different
from previous observations, the value of BMER in sputtered Pt3Sn does not
change out-of-plane due to the polycrystalline nature of Pt3Sn. The observation
of BMER provides strong evidence of the existence of spin-momentum locking in
the sputtered polycrystalline Pt3Sn. By adding an adjacent CoFeB magnetic
layer, the BMER value of this bilayer system is doubled compared to the single
Pt3Sn layer. This work broadens the material system in BMER study, which paves
the way for the characterization of topological states and applications for
spin memory and logic devices.

Date of feed: Thu, 25 May 2023 00:30:00 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **Anatomy of the fragmented Hilbert space: eigenvalue tunneling, quantum scars and localization in the perturbed random regular graph. (arXiv:2305.14416v1 [cond-mat.dis-nn])**

Daniil Kochergin, Ivan M. Khaymovich, Olga Valba, Alexander Gorsky

**Identifying non-Abelian anyons with upstream noise. (arXiv:2305.14422v1 [cond-mat.str-el])**

Misha Yutushui, David F. Mross

**Chiral model of twisted bilayer graphene realized in a monolayer. (arXiv:2305.14423v1 [cond-mat.mes-hall])**

Valentin Crépel, Aaron Dunbrack, Daniele Guerci, John Bonini, Jennifer Cano

**Noninvertible anomalies in $SU(N)\times U(1)$ gauge theories. (arXiv:2305.14425v1 [hep-th])**

Mohamed M. Anber, Erich Poppitz

**Spin and Charge Fluctuation Induced Pairing in ABCB Tetralayer Graphene. (arXiv:2305.14438v1 [cond-mat.supr-con])**

Ammon Fischer, Lennart Klebl, Jonas B. Hauck, Alexander Rothstein, Lutz Waldecker, Bernd Beschoten, Tim O. Wehling, Dante M. Kennes

**Terahertz Circular Dichroism in Commensurate Twisted Bilayer Graphene. (arXiv:2305.14472v1 [cond-mat.mes-hall])**

Spenser Talkington, Eugene J. Mele

**On the size of superconducting islands on the density-wave background in organic metals. (arXiv:2305.14510v1 [cond-mat.supr-con])**

Vladislav D. Kochev, Seidali S. Seidov, Pavel D. Grigoriev

**Berry Curvature and Topological Hall Effect in Magnetic Nanoparticles. (arXiv:2305.14519v1 [cond-mat.mtrl-sci])**

Ahsan Ullah, Balamurugan Balasubramanian, Bibek Tiwari, Bharat Giri, David J. Sellmyer, Ralph Skomski, Xiaoshan Xu

**Topological edge state transfer via topological adiabatic passage. (arXiv:2305.14529v1 [quant-ph])**

Chong Wang, Xiu Gu, Shu Chen, Yu-xi Liu

**Bottom-up Integration of TMDCs with Pre-Patterned Device Architectures via Transfer-free Chemical Vapor Deposition. (arXiv:2305.14554v1 [cond-mat.mtrl-sci])**

Lucas M. Sassi, Sathvik Ajay Iyengar, Anand B. Puthirath, Yuefei Huang, Xingfu Li, Tanguy Terlier, Ali Mojibpour, Ana Paula C. Teixeira, Palash Bharadwaj, Chandra Sekhar Tiwary, Robert Vajtai, Saikat Talapatra, Boris Yakobson, Pulickel M. Ajayan

**Statistical mechanics of nanotubes. (arXiv:2305.14602v1 [cond-mat.stat-mech])**

Siddhartha Sarkar, Mohamed El Hedi Bahri, Andrej Košmrlj

**Field-direction-dependent skyrmion crystals in noncentrosymmetric cubic magnets: A comparison between point groups $(O,T)$ and $T_{\rm d}$. (arXiv:2305.14619v1 [cond-mat.str-el])**

Satoru Hayami, Ryota Yambe

**Phases of 4He and H2 adsorbed on a single carbon nanotube. (arXiv:2305.14774v1 [cond-mat.other])**

M. C. Gordillo, J. Boronat

**Topological Phases in Magnonics: A Review. (arXiv:2305.14861v1 [cond-mat.mes-hall])**

Fengjun Zhuo, Jian Kang, Aurélien Manchon, Zhenxiang Cheng

**Faraday rotation and transmittance as markers of topological phase transitions in 2D materials. (arXiv:2305.14923v1 [cond-mat.mes-hall])**

M. Calixto, A. Mayorgas, N. A. Cordero, E. Romera, O. Castaños

**Structure prediction and characterization of CuI-based ternary $p$-type transparent conductors. (arXiv:2305.14941v1 [cond-mat.mtrl-sci])**

Michael Seifert (1), Tomáš Rauch (1), Miguel A. L. Marques (2), Silvana Botti (1 and 3) ((1) Institut für Festkörpertheorie und -optik, Friedrich-Schiller-Universität Jena and European Theoretical Spectroscopy Facility, (2) Research Center Future Energy Materials and Systems of the University Alliance Ruhr, Faculty of Mechanical Engineering, Ruhr University Bochum, (3) Research Center Future Energy Materials and Systems, Faculty of Physics and Astronomy, Ruhr Universität Bochum)

**Gate control of Mott metal-insulator transition in a 2D metal-organic framework. (arXiv:2305.14983v1 [cond-mat.str-el])**

Benjamin Lowe, Bernard Field, Jack Hellerstedt, Julian Ceddia, Henry L. Nourse, Ben J. Powell, Nikhil V. Medhekar, Agustin Schiffrin

**Experimental Verification of Many-Body Entanglement Using Thermodynamic Quantities. (arXiv:2305.15012v1 [quant-ph])**

Jitendra Joshi, Mir Alimuddin, T S Mahesh, Manik Banik

**Manipulation of magnetic solitons under the influence of DMI gradients. (arXiv:2305.15052v1 [cond-mat.mes-hall])**

Rayan Moukhader, Davi Rodrigues, Eleonora Raimondo, Vito Puliafito, Bruno Azzerboni, Mario Carpentieri, Abbass Hamadeh, Giovanni Finocchio, Riccardo Tomasello

**Effective model analysis of intrinsic spin Hall effect with magnetism in stacked-kagome Weyl semimetal Co3Sn2S2. (arXiv:2305.15144v1 [cond-mat.mes-hall])**

Akihiro Ozawa, Koji Kobayashi, Kentaro Nomura

**Topological surface states hybridized with bulk states of Bi-doped PbSb2Te4 revealed in quasiparticle interference. (arXiv:2305.15198v1 [cond-mat.mtrl-sci])**

Yuya Hattori, Keisuke Sagisaka, Shunsuke Yoshizawa, Yuki Tokumoto, Keiichi Edagawa

**Dirac half-semimetallicity and antiferromagnetism in graphene nanoribbon/hexagonal boron nitride heterojunctions. (arXiv:2305.15214v1 [cond-mat.mtrl-sci])**

Nikita V. Tepliakov, Ruize Ma, Johannes Lischner, Efthimios Kaxiras, Arash A. Mostofi, Michele Pizzochero

**Topological defects reveal the plasticity of glasses. (arXiv:2305.15226v1 [cond-mat.soft])**

Matteo Baggioli

**Bending-induced isostructural transitions in ultrathin layers of van der Waals ferrielectrics. (arXiv:2305.15247v1 [cond-mat.mtrl-sci])**

Anna N. Morozovska, Eugene A. Eliseev, Yongtao Liu, Kyle P. Kelley, Ayana Ghosh, Ying Liu, Jinyuan Yao, Nicholas V. Morozovsky, Andrei L Kholkin, Yulian M. Vysochanskii, Sergei V. Kalinin

**Defining a quantum active particle using non-Hermitian quantum walk. (arXiv:2305.15319v1 [quant-ph])**

Manami Yamagishi, Naomichi Hatano, Hideaki Obuse

**Flat band separation and robust spin-Berry curvature in bilayer kagome metals. (arXiv:2305.15345v1 [cond-mat.str-el])**

Domenico Di Sante, Chiara Bigi, Philipp Eck, Stefan Enzner, Armando Consiglio, Ganesh Pokharel, Pietro Carrara, Pasquale Orgiani, Vincent Polewczyk, Jun Fujii, Phil D. C King, Ivana Vobornik, Giorgio Rossi, Ilija Zeljkovic, Stephen D. Wilson, Ronny Thomale, Giorgio Sangiovanni, Giancarlo Panaccione, Federico Mazzola

**Half unit cell shift defect induced helical states in Fe-based chalcogenide superconductors. (arXiv:2305.15373v1 [cond-mat.supr-con])**

Tamoghna Barik, Jay D. Sau

**Tricritical behavior in dynamical phase transitions. (arXiv:2212.03324v2 [cond-mat.stat-mech] UPDATED)**

Tal Agranov, Michael E. Cates, Robert L. Jack

**A symmetry-protected exceptional ring in a photonic crystal with negative index media. (arXiv:2212.11090v2 [cond-mat.mes-hall] UPDATED)**

Takuma Isobe, Tsuneya Yoshida, Yasuhiro Hatsugai

**Theory of Edge Effects and Conductunce for Applications in Graphene-based Nanoantennas. (arXiv:2301.02441v2 [cond-mat.mes-hall] UPDATED)**

Tomer Berghaus, Touvia Miloh, Oded Gottlieb, Gregory Slepyan

**Many topological regions on the Bloch sphere of the spin-1/2 double kicked top. (arXiv:2301.08225v2 [quant-ph] UPDATED)**

J. Mumford

**Quasi-2D Fermi surface in the anomalous superconductor UTe2. (arXiv:2302.04758v2 [cond-mat.supr-con] UPDATED)**

A. G. Eaton, T. I. Weinberger, N. J. M. Popiel, Z. Wu, A. J. Hickey, A. Cabala, J. Pospisil, J. Prokleska, T. Haidamak, G. Bastien, P. Opletal, H. Sakai, Y. Haga, R. Nowell, S. M. Benjamin, V. Sechovsky, G. G. Lonzarich, F. M. Grosche, M. Valiska

**Mach--Zehnder-like interferometry with graphene nanoribbon networks. (arXiv:2302.04821v2 [cond-mat.mes-hall] UPDATED)**

Sofia Sanz, Nick Papior, Géza Giedke, Daniel Sánchez-Portal, Mads Brandbyge, Thomas Frederiksen

**A physically realizable molecular motor driven by the Landauer blowtorch effect. (arXiv:2304.01408v2 [cond-mat.mes-hall] UPDATED)**

Riley J. Preston, Daniel S. Kosov

**Autonomous decision making for solid-state synthesis of inorganic materials. (arXiv:2304.09353v2 [cond-mat.mtrl-sci] UPDATED)**

Nathan J. Szymanski, Pragnay Nevatia, Christopher J. Bartel, Yan Zeng, Gerbrand Ceder

**Observation and enhancement of room temperature bilinear magnetoelectric resistance in sputtered topological semimetal Pt3Sn. (arXiv:2305.10720v2 [cond-mat.mtrl-sci] UPDATED)**

Yihong Fan, Zach Cresswell, Yifei Yang, Wei Jiang, Yang Lv, Thomas Peterson, Delin Zhang, Jinming Liu, Tony Low, Jian-ping Wang

Found 7 papers in prb The ability to modify and tune the spin-wave dispersion is one of the most important requirements for engineering of magnonic networks. In this study, we demonstrate the promise of synthetic thin-film hybrids composed of an antiferromagnetic insulator (AF) and a normal (N) or superconducting (S) met… Motivated by the resistive switchings in transition-metal oxides (TMOs) induced by a voltage bias, we study the far-from-equilibrium dynamics of an electric-field-driven strongly correlated model featuring a first-order insulator-to-metal transition at equilibrium, namely the dimer-Hubbard model. We… The hydrodynamic behavior of charged carriers leads to nonlinear phenomena such as solitary waves and shocks, among others. As an application, such waves might be exploited on plasmonic devices either for modulation or signal propagation along graphene waveguides. We study the nature of nonlinear pe… The elastic and thermal properties of graphene were investigated by illuminating graphen bubbles with a laser spot. Tempertures above $1000{\phantom{\rule{0.16em}{0ex}}}^{∘}\mathrm{C}$ were obtained in large ($>10\phantom{\rule{0.28em}{0ex}}µ\mathrm{m}$) graphene bubbles. The formation of standin… We study the collective excitation modes of the Chern insulator states in magic-angle twisted bilayer graphene aligned with hexagonal boron nitride (TBG/BN) at odd integer fillings ($ν$) of the flat bands. For the $1×1$ commensurate double moiré superlattices in TBG/BN at three twist angles (${θ}^{′… Valleytronics using two-dimensional materials opens unprecedented opportunities for information processing using a valley polarizer as a basic building block. Various methodologies, such as strain engineering, the inclusion of line defects, and the application of static magnetic fields, have been wi… In this study, we investigate the effect of random point disorder on the surface states of a topological insulator with out-of-plane magnetization. We consider the disorder within a high-order Born approximation. The Born series converges to the one branch of the self-consistent Born approximation (…

Date of feed: Thu, 25 May 2023 03:17:15 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **Renormalization of antiferromagnetic magnons by superconducting condensate and quasiparticles**

A. M. Bobkov, S. A. Sorokin, and I. V. Bobkova

Author(s): A. M. Bobkov, S. A. Sorokin, and I. V. Bobkova

[Phys. Rev. B 107, 174521] Published Wed May 24, 2023

**Electrically driven insulator-to-metal transition in a correlated insulator: Electronic mechanism and thermal description**

Manuel I. Díaz, Jong E. Han, and Camille Aron

Author(s): Manuel I. Díaz, Jong E. Han, and Camille Aron

[Phys. Rev. B 107, 195148] Published Wed May 24, 2023

**Nonlinear density waves on graphene electron fluids**

Pedro Cosme and Hugo Terças

Author(s): Pedro Cosme and Hugo Terças

[Phys. Rev. B 107, 195432] Published Wed May 24, 2023

**Probing elastic properties of graphene and heat conduction in graphene bubbles above $1000{\phantom{\rule{0.16em}{0ex}}}^{∘}\mathrm{C}$**

Wolfgang Bacsa, Frédéric Topin, Marc Miscevic, James M. Hill, Yuan Huang, and Rodney S. Ruoff

Author(s): Wolfgang Bacsa, Frédéric Topin, Marc Miscevic, James M. Hill, Yuan Huang, and Rodney S. Ruoff

[Phys. Rev. B 107, 195433] Published Wed May 24, 2023

**Collective excitations of the Chern-insulator states in commensurate double moiré superlattices of twisted bilayer graphene on hexagonal boron nitride**

Xianqing Lin, Quan Zhou, Cheng Li, and Jun Ni

Author(s): Xianqing Lin, Quan Zhou, Cheng Li, and Jun Ni

[Phys. Rev. B 107, 195434] Published Wed May 24, 2023

**Effectuating tunable valley selection via multiterminal monolayer graphene devices**

Shrushti Tapar and Bhaskaran Muralidharan

Author(s): Shrushti Tapar and Bhaskaran Muralidharan

[Phys. Rev. B 107, 205415] Published Wed May 24, 2023

**Born approximation study of the strong disorder in magnetized surface states of a topological insulator**

R. S. Akzyanov

Author(s): R. S. Akzyanov

[Phys. Rev. B 107, 205416] Published Wed May 24, 2023

Found 1 papers in prl

Date of feed: Thu, 25 May 2023 03:17:15 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **Comment on “Coulomb Instabilities of a Three-Dimensional Higher-Order Topological Insulator”**

Yu-Wen Lee and Min-Fong Yang

Author(s): Yu-Wen Lee and Min-Fong Yang

[Phys. Rev. Lett. 130, 219701] Published Wed May 24, 2023

Found 2 papers in pr_res Dual scatterers preserve the helicity of an incident field, whereas antidual scatterers flip it completely. In this setting of linear electromagnetic scattering theory, we provide a completely general proof on the nonexistence of passive antidual scatterers. However, we show that scatterers fulfilli… Electrostatic charges placed near the interface between ordinary and topological insulators induce magnetic fields through the so-called topological magnetoelectric effect. Here we present a numerical implementation of the associated Maxwell equations. The resulting model is simple, fast, and quanti…

Date of feed: Thu, 25 May 2023 03:17:12 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **Resonant helicity mixing of electromagnetic waves propagating through matter**

Jon Lasa-Alonso, Jorge Olmos-Trigo, Chiara Devescovi, Pilar Hernández, Aitzol García-Etxarri, and Gabriel Molina-Terriza

Author(s): Jon Lasa-Alonso, Jorge Olmos-Trigo, Chiara Devescovi, Pilar Hernández, Aitzol García-Etxarri, and Gabriel Molina-Terriza

[Phys. Rev. Research 5, 023116] Published Wed May 24, 2023

**Topological magnetoelectric effect in semiconductor nanostructures: Quantum wells, wires, dots, and rings**

Josep Planelles, Jose L. Movilla, and Juan I. Climente

Author(s): Josep Planelles, Jose L. Movilla, and Juan I. Climente

[Phys. Rev. Research 5, 023119] Published Wed May 24, 2023

Found 1 papers in nano-lett

Date of feed: Wed, 24 May 2023 21:02:52 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **[ASAP] Experimental Demonstration of a Magnetically Induced Warping Transition in a Topological Insulator Mediated by Rare-Earth Surface Dopants**

Beatriz Muñiz Cano, Yago Ferreiros, Pierre A. Pantaleón, Ji Dai, Massimo Tallarida, Adriana I. Figueroa, Vera Marinova, Kevin García-Díez, Aitor Mugarza, Sergio O. Valenzuela, Rodolfo Miranda, Julio Camarero, Francisco Guinea, Jose Angel Silva-Guillén, and Miguel A. ValbuenaNano LettersDOI: 10.1021/acs.nanolett.3c00587

Found 1 papers in acs-nano

Date of feed: Thu, 25 May 2023 00:39:58 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **[ASAP] Portable Bulk-Water Disinfection by Live Capture of Bacteria with Divergently Branched Porous Graphite in Electric Fields**

Xianfu Luo, Weigu Li, Zexi Liang, Yifei Liu, and Donglei Emma FanACS NanoDOI: 10.1021/acsnano.2c12229

Found 1 papers in science-adv

Date of feed: Wed, 24 May 2023 19:00:09 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **Higher-order topological polariton corner state lasing**

Jinqi Wu, Sanjib Ghosh, Yusong Gan, Ying Shi, Subhaskar Mandal, Handong Sun, Baile Zhang, Timothy C. H. Liew, Rui Su, Qihua Xiong

Science Advances, Volume 9, Issue 21, May 2023.

Found 3 papers in nat-comm **Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **Topological defects reveal the plasticity of glasses**

< author missing >

**Rotational and dilational reconstruction in transition metal dichalcogenide moiré bilayers**

< author missing >

**Topology of vibrational modes predicts plastic events in glasses**

< author missing >

Found 1 papers in scipost **Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+) **Symmetries and topological operators, on average, by Andrea Antinucci, Giovanni Galati, Giovanni Rizi and Marco Serone**

< author missing >

Submitted on 2023-05-24, refereeing deadline 2023-06-21.