Found 27 papers in cond-mat This work demonstrates the viability of scandium oxide deposition on silicon
by means of high pressure sputtering. Deposition pressure and radio frequency
power are varied for optimization of the properties of the thin films and the
ScOx-Si interface. The physical characterization was performed by ellipsometry,
Fourier transform infrared spectroscopy, x-ray diffraction and transmission
electron microscopy. Aluminum gate electrodes were evaporated for
metal-insulator-semiconductor (MIS) fabrication. From the electrical
characterization of the MIS devices, the density of interfacial defects is
found to decrease with deposition pressure, showing a reduced plasma damage of
the substrate surface for higher pressures. This is also supported by lower
flatband voltage shifts in the capacitance versus voltage hysteresis curves.
Sputtering at high pressures (above 100 Pa) reduces the interfacial SiOx
formation, according to the infrared spectra. The growth rates decrease with
deposition pressure, so a very accurate control of the layer thicknesses could
be provided.
High k gadolinium oxide thin layers were deposited on silicon by
high-pressure sputtering (HPS). In order to optimize the properties for
microelectronic applications, different deposition conditions were used. Ti
(scavenger) and Pt (nonreactive) were e-beam evaporated to fabricate
metal-insulator-semiconductor (MIS) devices. According to x-ray diffraction,
x-ray photoelectron spectroscopy, and Fourier-transform infrared spectroscopy,
policrystaline stoichiometric Gd2O3 films were obtained by HPS. MIS with the
dielctric deposited at higher pressures also present lower flatband voltage
shifts in the C-V hysteris curves.
From the laboratory to real-world applications, synthesis of two dimensional
(2D) materials requires modular techniques to control morphology, structure,
chemistry, and the plethora of exciting properties arising from these nanoscale
materials. In this review, we explore one of the many available synthesis
techniques; the extremely versatile two-step conversion (2SC) method. The 2SC
technique relies on deposition of a metal or metal oxide film, followed by
reaction with a chalcogen vapor at an elevated temperature, converting the
precursor film to a crystalline transition metal dichalcogenide (TMD). Herein,
we consider the variables at each step of the 2SC process including the impact
of the precursor film material and deposition technique, the influence of gas
composition and temperature during conversion, as well as other factors
controlling high quality 2D TMD synthesis. We feature the specific advantages
to the 2SC approach including deposition on diverse substrates, low temperature
processing, orientation control, and heterostructure synthesis, among others.
Finally, emergent opportunities that take advantage of the 2SC approach are
discussed to include next generation electronics, sensing, and optoelectronic
devices as well as catalysis for energy-related applications; spotlighting the
great potential of the 2SC technique.
We thoroughly investigate the microscopic mechanisms of the thermal transport
in orthorhombic \textit{o}-CsCu$_5$S$_3$ by integrating the
first-principles-based self-consistent phonon calculations (SCP) with the
linearized Wigner transport equation (LWTE). Our methodology takes into account
contributions to phonon energy shifts and phonon scattering rates from both
three- and four-phonon processes. Additionally, it incorporates the
off-diagonal terms of heat flux operators to calculate the total thermal
conductivity. The predicted $\kappa_\mathrm{L}$ with an extremely weak
temperature dependence following $\sim T^{-0.33}$, in good agreement with
experimental values along with the parallel to the Bridgman growth direction.
Such nonstandard temperature dependence of $\kappa_\mathrm{L}$ can be traced
back to the dual particlelike-wavelike behavior exhibited by thermal phonons.
Specifically, the coexistence of the stochastic oscillation of Cs atoms and
metavalent bonding among interlayer Cu-S atoms limits the particle-like phonon
propagation and enhances the wave-like tunneling of phonons. Simultaneously,
the electrical transport properties are determined by employing a precise
momentum relaxation-time approximation (MRTA) within the framework of the
linearized Boltzmann transport equation (LBTE). By properly adjusting the
carrier concentration, excellent thermoelectric performance is achieved, with a
maximum thermoelectric conversion efficiency of 18.4$\%$ observed at 800 K in
\textit{p}-type \textit{o}-CsCu$_5$S$_3$.} Our work not only elucidates the
anomalous thermal transport behavior in the copper-based chalcogenide
\textit{o}-CsCu$_5$S$_3$ but also provides insights for manipulating its
thermal and electronic properties for potential thermoelectric applications.
We present a loop-opening model that accounts for the molecular details of
the intrinsic fracture energy for fracturing polymer networks. This model
includes not only the energy released from the scission of bridging chains but
also the subsequent energy released from the network continuum. Scission of a
bridging chain releases the crosslinks and opens the corresponding topological
loop. The released crosslinks will be caught by the opened loop to reach a new
force-balanced state. The amount of energy released from the network continuum
is limited by the stretchability of the opened loop. Based on this loop-opening
process, we suggest that the intrinsics fracture energy per broken chain
approximately scales with the product of the fracture force and the contour
length of the opened loop. This model predicts an intrinsic fracture energy
that aligns well with various experimental data on the fracture of polymer
networks.
Exploration of nontrivial magnetic states induced by strong spin-orbit
interaction is a central topic of frustrated magnetism. Extensive studies are
concentrated on rare-earth-based magnets and 4d/5d transition metal compounds,
which are mostly described by an effective spin $S_{\text{eff}} = 1/2$ for the
Kramers doublet of the lowest crystal-electric-field levels. Variety of
magnetic orderings may be greatly enhanced when magnetic dipolar moments
intertwined with multipolar degrees of freedom which are described by
higher-rank tensors and often require the magnetic ions with $S_{\text{eff}} >
1/2$. Here, our synchrotron x-ray diffraction near the Dy $L_3$ edge has
unveiled a canted antiferromagnetic ground state arising from a quasi-quartet
($S_{\text{eff}} = 3/2$) of 4f electrons in a triangular-lattice (TL)
rare-earth intermetallics DyAuGe. Magnetic moment and electric-quadrupole
moment are closely interlocked and noncollinear magnetic-dipole alignment is
induced by antiferroic electric-quadrupole (AFQ) ordering in the TL layers. The
correlation between the AFQ and canted magnetic structures is further confirmed
by phase transitions in an in-plane magnetic field. These findings offer
insights into the emergence of nontrivial magnetic states in frustrated TL
systems described beyond the $S_{\text{eff}} = 1/2$.
We study the electronic structure of an exotic superconductor, PdTe employing
depth-resolved high resolution photoemission spectroscopy and density
functional theory. The valence band spectra exhibit large density of states at
the Fermi level with flat intensity in a wide energy range indicating highly
metallic ground state. The Pd 4d-Te 5p hybridization is found to be strong
leading to a highly covalent character of the itinerant states. Core level
spectra exhibit several features including the signature of plasmon
excitations. Although the radial extension of the 4d orbitals is larger than 3d
ones, the Pd core level spectra exhibit distinct satellites indicating
importance of electron correlation in the electronic structure which may be a
reason for unconventional superconductivity observed in this system. The
depth-resolved data reveal surface peaks at higher binding energies in both, Te
and Pd core level spectra. Interestingly, core level shift in Te-case is
significantly large compared to Pd although Te is relatively more
electronegative. Detailed analysis rules out applicability of the charge
transfer and/or band-narrowing models to capture this scenario. This unusual
scenario is attributed to the reconstruction and/or vacancies at the surface.
These results reveal the importance of electron correlation and surface
topology for the physics of this material exhibiting Dirac fermions and complex
superconductivity.
The nonequilibrium steady states of quantum materials have many challenges.
Here, we highlight issues with the relaxation time approximation (RTA) for the
DC conductivity in insulating systems. The RTA to the quantum master equation
(QME) is frequently employed as a simple method, yet this phenomenological
approach is exposed as a fatal approximation, displaying metallic DC
conductivity in insulating systems within the linear response regime. We find
that the unexpected metallic behavior is caused by the fact that the density
matrix in the RTA incompletely incorporates the first order of the external
field. To solve this problem, we have derived a new calculation scheme based on
the QME that ensure correct behavior in low electric fields. Our method
reproduces well the overall features of the exact electric currents in the
whole field region. It is not time-consuming, and its application to lattice
systems is straightforward. This method will encourage progress in this
research area as a simple way to more accurately describe nonequilibrium steady
states.
Surfaces (interfaces) dictate many physical and chemical properties of solid
materials and adsorbates considerably affect these properties. Nitrogen
molecules, which are the most abundant constituent in ambient air, are
considered to be inert. Our study combining atomic force microscopy (AFM),
X-ray photoemission spectroscopy (XPS), and thermal desorption spectroscopy
(TDS) revealed that nitrogen and water molecules can self-assemble into
two-dimensional domains, forming ordered stripe structures on graphitic
surfaces in both water and ambient air. The stripe structures of this study
were composed of approximately 90% and 10% water and nitrogen molecules,
respectively, and survived in ultra-high vacuum (UHV) conditions at
temperatures up to approximately 350 K. Because pure water molecules completely
desorb from graphitic surfaces in a UHV at temperatures lower than 200 K, our
results indicate that the incorporation of nitrogen molecules substantially
enhanced the stability of the crystalline water hydrogen bonding network.
Additional studies on interfacial gas hydrates can provide deeper insight into
the mechanisms underlying formation of gas hydrates.
Flat-bands induced by destructive interference of hoppings in frustrated
lattices such as kagome metals, have been extensively studied in recent years
since they may lead to strongly correlated phenomena. However, in realistic
multiorbital $d$-electron materials, such flat-bands usually appear in small
portions of Brillouin zone and are away from Fermi level (dubbed as
``incipient"). Whether such incipient flat-band portions can induce very strong
electron correlations is an open question. Here, by density functional theory
plus dynamical mean-field theory calculations on the superconducting kagome
CsCr$_3$Sb$_5$ and triangular CrB$_2$, we show that the roles of such incipient
flat-bands in driving electron correlations can be significantly amplified by
Hund's coupling $J_{\text{H}}$ in a Hund's metal. As a result, even moderately
$d$-electron heavy-fermions could be induced by enhancing the orbital
differentiation and Kondo-like effect of Hund's metals. This provides a
flexible route for generating $d$-electron heavy-fermion, and for controllably
inducing electron correlations and magnetic fluctuations suitable for emergence
of unconventional superconductivity, in frustrated Hund's metals with portions
of incipient flat-bands.
Monolayers of molybdenum disulfide (MoS2) are the most studied
two-dimensional (2D) transition-metal dichalcogenides (TMDs), due to its
exceptional optical, electronic, and opto-electronic properties. Recent studies
have shown the possibility of incorporating a small amount of magnetic
transition metals (e.g., Fe, Co, Mn, V) into MoS2 to form a 2D dilute magnetic
semiconductor (2D-DMS). However, the origin of the observed ferromagnetism has
remained elusive, due to the presence of randomly generated sulfur vacancies
during synthesis that can pair with magnetic dopants to form complex
dopant-vacancy configurations altering the magnetic order induced by the
dopants. By combining high-angle annular dark-field scanning transmission
electron microscopy (HAADF-STEM) imaging with first-principles density
functional theory (DFT) calculations and magnetometry data, we demonstrate the
critical effects of sulfur vacancies and their pairings with vanadium atoms on
the magnetic ordering in V-doped MoS2 (V-MoS2) monolayers. Additionally, we
fabricated a series of field effect transistors on these V-MoS2 monolayers and
observed the emergence of p-type behavior as the vanadium concentration
increased. Our study sheds light on the origin of ferromagnetism in V-MoS2
monolayers and provides a foundation for future research on defect engineering
to tune the electronic and magnetic properties of atomically thin TMD-based
DMSs.
We demonstrate an all-epitaxial and scalable growth approach to fabricate
single-crystalline GaN nanowires on graphene by plasma-assisted molecular beam
epitaxy. As substrate, we explore several types of epitaxial graphene layer
structures synthesized on SiC. The different structures differ mainly in their
total number of graphene layers. Because graphene is found to be etched under
active N exposure, the direct growth of GaN nanowires on graphene is only
achieved on multilayer graphene structures. The analysis of the nanowire
ensembles prepared on multilayer graphene by Raman spectroscopy and
transmission electron microscopy reveals the presence of graphene underneath as
well as in between nanowires, as desired for the use of this material as
contact layer in nanowire-based devices. The nanowires nucleate preferentially
at step edges, are vertical, well aligned, epitaxial, and of comparable
structural quality as similar structures fabricated on conventional substrates.
The dynamical Franz-Keldysh effect, indicative of the transient light-matter
interaction regime between quantum and classical realms, is widely recognized
as an essential signature in wide bandgap condensed matter systems such as
dielectrics. In this study, we applied the time-resolved transient absorption
spectroscopy to investigate ultrafast optical responses in graphene, a
zero-bandgap system. We observed in the gate-tuned graphene that the massless
Dirac materials notably enhance intraband light-driven transitions,
significantly leading to the giant dynamical Franz-Keldysh effect compared to
the massive Dirac materials, a wide bandgap system. In addition, employing the
angle-resolved spectroscopy, it is found that the perpendicular polarization
orientation for the pump and the probe further pronounces the optical spectra
to exhibit the complete fishbone structure, reflecting the unique pseudospin
nature of Dirac cones. Our findings expand the establishment of emergent
transient spectroscopy frameworks into not only zero-bandgap systems but also
pseudospin-mediated quantum phenomena, moving beyond dielectrics.
Magnetic tunnel junctions (MTJs) have been widely applied in spintronic
devices for efficient spin detection through the imbalance of spin polarization
at the Fermi level. The van der Waals (vdW) nature of two-dimensional (2D)
magnets with atomic-scale flat surfaces and negligible surface roughness
greatly facilitates the development of MTJs, yet is only restricted to
ferromagnets. Here, we report A-type antiferromagnetism in 2D vdW
single-crystal (Fe0.8Co0.2)3GaTe2 with TN~203 K in bulk and ~185 K in 9-nm
nanosheets. The metallic nature and out-of-plane magnetic anisotropy make it a
suitable candidate for MTJ electrodes. By constructing heterostructures based
on (Fe0.8Co0.2)3GaTe2/WSe2/Fe3GaTe2, we obtain a large tunneling
magnetoresistance (TMR) ratio of 180% at low temperature and the TMR retains at
near-room temperature 280 K. Moreover, the TMR is tunable by the electric field
down to 1 mV, implying the potential in energy-efficient spintronic devices.
Our work provides new opportunities for 2D antiferromagnetic spintronics and
quantum devices.
We investigate the anomalous photo-induced band renormalization in correlated
materials, exemplified by the case of Ta$_2$NiSe$_5$. The manifestation of this
anomaly is characterized by the alternating direction of band shift in response
to changes in the laser parameters or electron momentum. We attribute the
phenomena to the band inversion of the material and the selective excitation of
a high-lying flat band, leading to the competition between the Hartree shift
and the order collapse. These findings are based on {\it ab initio} determined
effective model for Ta$_2$NiSe$_5$, in which we incorporate high-lying states
and the time-dependent GW simulation to follow the non-equilibrium dynamics
induced by the laser. Our findings reveal the sensitivity of the
non-equilibrium electronic dynamics to the band structure and laser protocols,
providing valuable guidance for the selection of suitable materials and lasers
in the engineering of band structures.
In cuprate superconductors, the highest superconducting transition
temperature $T_c$ is possessed by the HgBa$_2$Ca$_2$Cu$_3$O$_{8+\delta}$
(Hg-1223) system at ambient pressure, but the reason remains elusive. Here we
report the scanning tunneling microscope measurements on the Hg-1223 single
crystals with $T_c$ = 134 K. The observed superconducting gaps determined from
the tunneling spectra can be categorized into two groups: the smaller gap
$\Delta_1$ ranges from about 45 to 70 meV, while the larger gap $\Delta_2$ from
about 65 to 98 meV. The observed unprecedentedly large gap value gives a
straightforward explanation to the highest $T_c$ in the Hg-1223 system. The
largest gap observed here is comparable to the magnetic superexchange energy
and excludes any possibility of using phonon pictures to interpret the
superconductivity. Interestingly, an extremely strong particle-hole asymmetry
is observed in associating with a very robust coherence peak at the bias of the
larger gap in the hole branch of the Bogoliubov dispersion. We propose that the
observed asymmetry results from the interplay of a flat band (van Hove
singularity) in the electronic spectrum and the large superconducting gap in
the underdoped layer. This could be the main reason for the strong pairing, and
significant enhancement of the density of states in the hole branch of the
Bogoliubov band yielding strong phase coherence of Cooper pairs. A scenario
based on a trilayer model with an interlayer coupling can give a reasonable
explanation. Our results provide deep insight into understanding the mechanism
of superconductivity in cuprate superconductors.
Engineering new quantum phases requires fine tuning of the electronic,
orbital, spin, and lattice degrees of freedom. To this end, the kagome lattice
with flat bands has garnered great attention by hosting various topological and
correlated phases, when the flat band is at the Fermi level. Here we discover
unconventional nematiciy in kagome metal CoSn, where flat bands are fully
occupied below the Fermi level. Thermodynamic, dilatometry, resonant X-ray
scattering, inelastic neutron scattering, Larmor diffraction, and
thermoelectric measurements consistently hint at rotational symmetry-breaking
and nematic order that is pronounced only near T=225 K. These observations,
principally the nematic's finite temperature stability -- incipience -- can be
explained by a phenomenological model which reveals that thermally excited flat
bands promote symmetry breaking at a characteristic temperature. Our work shows
that thermal fluctuations, which are typically detrimental for correlated
electron phases, can induce new ordered states of matter, avoiding the
requirements for fine tuning of electronic bands.
Loop extrusion is one of the main processes shaping chromosome organisation
across the cell cycle, yet its role in regulating DNA entanglement and
nucleoplasm viscoelasticty remains overlooked. We simulate entangled solutions
of linear polymers under the action of generic Loop Extruding Factors (LEF)
with a model that fully accounts for topological constraints and LEF-DNA
uncrossability. We discover that extrusion drives the formation of
bottle-brush-like structures which significantly lower the entanglement and
effective viscosity of the system through an active fluidification mechanism.
Interestingly, this fluidification displays an optimum at one LEF every
300-3000 basepairs. In marked contrast with entangled linear chains, the
viscosity of extruded chains scales linearly with polymer length, yielding up
to 1000-fold fluidification. Our results illuminate how loop extrusion
contributes to actively modulate genome entanglement and viscoelasticity in
vivo.
We obtain some new results on the unimodal sequences of the real values of
rational functions by polynomials with positive integer coefficients. Thus, we
introduce the notion of merged-log-concavity of rational functions. Roughly
speaking, the notion extends Stanley's $q$-log-concavity of polynomials.
We construct explicit merged-log-concave rational functions by $q$-binomial
coefficients, Hadamard products, and convolutions, extending the Cauchy-Binet
formula. Then, we obtain the unimodal sequences of rational functions by Young
diagrams. Moreover, we consider the variation of unimodal sequences by critical
points that separate strictly increasing, strictly decreasing, and hill-shape
sequences among almost strictly unimodal sequences. Also, the critical points
are zeros of polynomials in a suitable setting.
The study above extends the $t$-power series of $(\pm t;q)_{\infty}^{\mp 1}$
to some extent by polynomials with positive integer coefficients and the
variation of unimodal sequences. We then obtain the golden ratio of quantum
dilogarithms ($q$-exponentials) as a critical point. Additionally, we consider
eta products, generalized Narayana numbers, and weighted $q$-multinomial
coefficients, which we introduce.
In statistical mechanics, we discuss the grand canonical partition functions
of some ideal boson-fermion gases with or without Casimir energies (Ramanujan
summation). The merged-log-concavity gives phase transitions on Helmholtz free
energies by critical points of the metallic ratios including the golden ratio.
In particular, the phase transitions implies non-zero particle vacua from zero
particle vacua as the temperature rises.
Relaxation dynamics of complex many-body quantum systems brought out of
equilibrium and subsequently trapped into metastable states is a very active
field of research from both the theoretical and experimental point of view with
implications in a wide array of topics from macroscopic quantum tunnelling and
nucleosynthesis to non-equilibrium superconductivity and new energy-efficient
memory devices. Understanding the dynamics of such systems is crucial for
exploring fundamental aspects of many-body non-equilibrium quantum physics. In
this work we investigate quantum domain reconfiguration dynamics in the
electronic superlattice of a quantum material where classical dynamics is
topologically constrained. The crossover from temperature to quantum
fluctuation dominated dynamics in the context of environmental noise is
investigated by directly observing charge reconfiguration with time-resolved
scanning tunneling microscopy. The process is modelled using a programmable
superconducting quantum simulator in which qubit interconnections correspond
directly to the microscopic interactions between electrons in the quantum
material. Crucially, the dynamics of both the experiment on the quantum
material and the simulation is driven by spectrally similar pink noise. We find
that the simulations reproduce the emergent time evolution and temperature
dependence of the experimentally observed electronic domain dynamics remarkably
well. The combined experiment and simulations lead to a better understanding of
noise-driven quantum dynamics in open quantum systems. From a practical
viewpoint, the results are important for understanding the origin of the
retention time in non-volatile memory devices such as those based on 1T-TaS2.
We present a general approach to the bulk-boundary correspondence of
noninvertible topological phases, including both topological and fracton
orders. This is achieved by a novel bulk construction protocol where solvable
$(d+1)$-dimensional bulk models with noninvertible topology are constructed
from the so-called generalized Ising (GI) models in $d$ dimensions. The GI
models can then terminate on the boundaries of the bulk models. The
construction generates abundant examples, including not only prototype ones
such as $Z_2$ toric code models in any dimensions no less than two, and the
X-cube fracton model, but also more diverse ones such as the $Z_2\times Z_2$
topological order, the 4d $Z_2$ topological order with pure-loop excitations,
etc. The boundary of the solvable model is potentially anomalous and
corresponds to precisely only sectors of the GI model that host certain total
symmetry charges and/or satisfy certain boundary conditions. We derive a
concrete condition for such bulk-boundary correspondence. The condition is
violated only when the bulk model is either trivial or fracton ordered. A
generalized notion of Kramers-Wannier duality plays an important role in the
construction. Also, utilizing the duality, we find an example where a single
anomalous theory can be realized on the boundaries of two distinct bulk fracton
models, a phenomenon not expected in the case of topological orders. More
generally, topological orders may also be generated starting with lattice
models beyond the GI models, such as those with symmetry protected topological
orders, through a variant bulk construction, which we provide in an appendix.
Dynamical fluctuations or rare events associated with atypical trajectories
in chaotic maps due to specific initial conditions can crucially determine
their fate, as the may lead to stability islands or regions in phase space
otherwise displaying unusual behavior. Yet, finding such initial conditions is
a daunting task precisely because of the chaotic nature of the system. In this
work, we circumvent this problem by proposing a framework for finding an
effective topologically-conjugate map whose typical trajectories correspond to
atypical ones of the original map. This is illustrated by means of examples
which focus on counterbalancing the instability of fixed points and periodic
orbits, as well as on the characterization of a dynamical phase transition
involving the finite-time Lyapunov exponent. The procedure parallels that of
the application of the generalized Doob transform in the stochastic dynamics of
Markov chains, diffusive processes and open quantum systems, which in each case
results in a new process having the prescribed statistics in its stationary
state. This work thus brings chaotic maps into the growing family of systems
whose rare fluctuations -- sustaining prescribed statistics of dynamical
observables -- can be characterized and controlled by means of a
large-deviation formalism.
We demonstrate the emergence of a pronounced thermal transport in the
recently discovered class of magnetic materials-altermagnets. From symmetry
arguments and first-principles calculations performed for the showcase
altermagnet, RuO2, we uncover that crystal Nernst and crystal thermal Hall
effects in this material are very large and strongly anisotropic with respect
to the Neel vector. We find the large crystal thermal transport to originate
from three sources of Berry's curvature in momentum space: the Weyl fermions
due to crossings between well-separated bands, the strong spin-flip pseudonodal
surfaces, and the weak spin-flip ladder transitions, defined by transitions
among very weakly spin-split states of similar dispersion crossing the Fermi
surface. Moreover, we reveal that the anomalous thermal and electrical
transport coefficients in RuO2 are linked by an extended Wiedemann-Franz law in
a temperature range much wider than expected for conventional magnets. Our
results suggest that altermagnets may assume a leading role in realizing
concepts in spin caloritronics not achievable with ferromagnets or
antiferromagnets.
We propose a scenario for superconductivity at strong electron-electron
attractive interaction, in the situation when the increase of interaction
strength promotes the nucleation of the local Cooper pairs and forms a state
with a spatially phase incoherent Cooper pair order parameter. We show that
this state can be characterized by a pseudogap which is determined by the
electron scattering by phase fluctuations. At low temperatures, however,
long-range correlations between the regions with different phases become
important and establish global phase coherence hence superconductivity in the
system. We develop a mean-field theory to describe a phase transition between
the preformed Cooper pair and superconducting states. The superconducting
transition temperature and the upper critical magnetic field are shown to be
enhanced in the strong coupling case. The mean-field approach is justified by
the small value of the Ginzburg-Levanyuk parameter. This scenario of
superconductivity applies not only to conductors with parabolic bands but also
to the flat-band systems in which flat and dispersive bands coexist and
responsible for the Cooper pairs formation as well as their
phase-synchronization.
Higher-order topological properties of two-dimensional(2D) magnetic materials
have recently been proposed. In 2D ferromagnetic Janus materials, we find that
ScClI is a second-order topological insulator (SOTI). By means of a
multi-orbital tight-binding model, we analyze the orbital contributions of
higher-order topologies. Further, we give the complete high-order topological
phase diagram of ScClI, based on the external field modulation of the
magneto-valley coupling and energy levels. 2D ScClI has a pronounced valley
polarization, which causes different insulating phases to exhibit completely
different anomalous Nernst conductance. As a result, we use the matched
anomalous Nernst effect to reveal the topological phase transition process of
ScClI. We utilize the characteristics of valley electronics to link
higher-order topological materials with the anomalous Nernst effect, which has
potential implications for high-order topological insulators and valley
electronics.
We study effects of relaxation/decoherence processes on quantum transport of
non-interacting Fermi particles across the tight-binding chain, where we
distinguish between relaxation processes in the contacts (external decoherence)
and those in the chain (internal decoherence). It is argued that relaxation
processes in the contacts can essentially modify the resonant transmission as
compared to the Landauer theory. We also address quantum transport in
disordered chains. It is shown that external decoherence reduces conductance
fluctuations but does not alter the Anderson localization length. This is in
strong contrast with the effect of internal decoherence which is found to
suppress the Anderson localization.
We use the Lindblad equation approach to investigate topological phases
hosting more than one localized state at each side of a disordered SSH chain
with properly tuned long range hoppings. Inducing a non equilibrium steady
state across the chain, we probe the robustness of each phase and the fate of
the edge modes looking at the distribution of electrons along the chain and the
corresponding standard deviation in the presence of different kinds of disorder
either preserving, or not, the symmetries of the Hamiltonian.

Date of feed: Wed, 31 Jan 2024 01:30:00 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]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Optimization of scandium oxide growth by high pressure sputtering on silicon. (arXiv:2401.16489v1 [cond-mat.mtrl-sci])**

Pedro Carlos Feijoo, María Ángela Pampillón, Enrique San Andrés, María Luisa Lucía

**Optimization of gadolinium oxide growth deposited on Si by high pressure sputtering. (arXiv:2401.16499v1 [cond-mat.mtrl-sci])**

Pedro Carlos Feijoo, María Ángela Pampillón, Enrique San Andrés

**Two-step conversion of metal and metal oxide precursor films to 2D transition metal dichalcogenides and heterostructures. (arXiv:2401.16513v1 [cond-mat.mtrl-sci])**

Michael Altvater, Christopher Muratore, Michael Snure, Nicholas Glavin

**Ultra-low glassy thermal conductivity and controllable, promising thermoelectric properties in crystalline o-CsCu5S3. (arXiv:2401.16527v1 [cond-mat.mtrl-sci])**

Jincheng Yue, Jiongzhi Zheng, Junda Li, Siqi Guo, Wenling Ren, Han Liu, Yanhui Liu, Tian Cui

**A Loop-Opening Model for the Intrinsic Fracture Energy of Polymer Networks. (arXiv:2401.16607v1 [cond-mat.mtrl-sci])**

Shu Wang, Chase M. Hartquist, Bolei Deng, Xuanhe Zhao

**Canted antiferromagnetism in a spin-orbit coupled $S_{\text{eff}} = 3/2$ triangular-lattice magnet DyAuGe. (arXiv:2401.16622v1 [cond-mat.str-el])**

Takashi Kurumaji, Masaki Gen, Shunsuke Kitou, Hajime Sagayama, Hironori Nakao, Taka-hisa Arima

**Evidence of electron correlation and unusual spectral evolution in an exotic superconductor, PdTe. (arXiv:2401.16724v1 [cond-mat.supr-con])**

Ram Prakash Pandeya, Arindam Pramanik, Pramita Mishra, Indranil Sarkar, A. Thamizhavel, Kalobaran Maiti

**Unexpected linear conductivity in Landau-Zener model: limitations and improvements of the relaxation time approximation in the quantum master equation. (arXiv:2401.16728v1 [cond-mat.mes-hall])**

Ibuki Terada, Sota Kitamura, Hiroshi Watanabe, Hiroaki Ikeda

**Formation of highly stable interfacial nitrogen gas hydrate overlayers under ambient conditions. (arXiv:2401.16737v1 [cond-mat.mtrl-sci])**

Chung-Kai Fang, Cheng-Hao Chuang, Chih-Wen Yang, Zheng-Rong Guo, Wei-Hao Hsu, Chia-Hsin Wang, Ing-Shouh Hwang

**Heavy-fermions in frustrated Hund's metal with portions of incipient flat-bands. (arXiv:2401.16770v1 [cond-mat.str-el])**

Yilin Wang

**Vanadium-Doped Molybdenum Disulfide Monolayers with Tunable Electronic and Magnetic Properties: Do Vanadium-Vacancy Pairs Matter?. (arXiv:2401.16806v1 [cond-mat.mtrl-sci])**

Da Zhou, Yen Thi Hai Pham, Diem Thi-Xuan Dang, David Sanchez, Aaryan Oberoi, Ke Wang, Andres Fest, Alexander Sredenschek, Mingzu Liu, Humberto Terrones, Saptarshi Das, Dai-Nam Le, Lilia M. Woods, Manh-Huong Phan, Mauricio Terrones

**Molecular Beam Epitaxy of GaN Nanowires on Epitaxial Graphene. (arXiv:2401.16874v1 [cond-mat.mtrl-sci])**

Sergio Fernández-Garrido, Manfred Ramsteiner, Guanhui Gao, Lauren A.Galves, Bharat Sharma, Pierre Corfdir, Gabriele Calabrese, Ziani de Souza Schiaber, Carsten Pfüller, Achim Trampert, João Marcelo J. Lopes, Oliver Brandt, Lutz Geelhaar

**Exploring the giant dynamical Franz-Keldysh effect in massless Dirac materials. (arXiv:2401.16898v1 [cond-mat.mes-hall])**

Youngjae Kim

**Tunable high-temperature tunneling magnetoresistance in all-van der Waals antiferromagnet/semiconductor/ferromagnet junctions. (arXiv:2401.16984v1 [cond-mat.mtrl-sci])**

Wen Jin, Xinlu Li, Gaojie Zhang, Hao Wu, Xiaokun Wen, Li Yang, Jie Yu, Bichen Xiao, Wenfeng Zhang, Jia Zhang, Haixin Chang

**Anomalous photo-induced band renormalization in correlated materials: Case study of Ta$_2$NiSe$_5$. (arXiv:2401.16988v1 [cond-mat.str-el])**

Lei Geng, Xiulan Liu, Jianing Zhang, Denis Golež, Liang-You Peng

**Unprecedentedly large superconducting gap in HgBa$_2$Ca$_2$Cu$_3$O$_{8+\delta}$ with the highest $T_c$ at ambient pressure. (arXiv:2401.17079v1 [cond-mat.supr-con])**

Chuanhao Wen, Zhiyong Hou, Alireza Akbari, Kailun Chen, Wenshan Hong, Huan Yang, Ilya Eremin, Yuan Li, Hai-Hu Wen

**Incipient nematicity from electron flat bands in a kagome metal. (arXiv:2401.17141v1 [cond-mat.str-el])**

Nathan Drucker, Thanh Nguyen, Manasi Mandal, Phum Siriviboon, Yujie Quan, Artittaya Boonkird, Ryotaro Okabe, Fankang Li, Kaleb Buragge, Fumiaki Funuma, Masaaki Matsuda, Douglas Abernathy, Travis Williams, Songxue Chi, Feng Ye, Christie Nelson, Bolin Liao, Pavel Volkov, Mingda Li

**Active Fluidification of Entangled Polymers by Loop Extrusion. (arXiv:2401.17232v1 [cond-mat.soft])**

Filippo Conforto, Yair Augusto Gutierrez Fosado, Davide Michieletto

**Merged-log-concavity of rational functions, almost strictly unimodal sequences, and phase transitions of ideal boson-fermion gases. (arXiv:2003.02112v2 [math.CO] UPDATED)**

So Okada

**Non-equilibrium quantum domain reconfiguration dynamics in a two-dimensional electronic crystal: experiments and quantum simulations. (arXiv:2103.07343v4 [quant-ph] UPDATED)**

Jaka Vodeb, Michele Diego, Yevhenii Vaskivskyi, Leonard Logaric, Yaroslav Gerasimenko, Viktor Kabanov, Benjamin Lipovsek, Marko Topic, Dragan Mihailovic

**Towards Non-Invertible Anomalies from Generalized Ising Models. (arXiv:2208.09101v2 [cond-mat.str-el] UPDATED)**

Shang Liu, Wenjie Ji

**Finding the effective dynamics to make rare events typical in chaotic maps. (arXiv:2304.13754v3 [cond-mat.stat-mech] UPDATED)**

Ricardo Gutiérrez, Adrián Canella-Ortiz, Carlos Pérez-Espigares

**Crystal Thermal Transport in Altermagnetic RuO2. (arXiv:2305.01410v2 [cond-mat.mtrl-sci] UPDATED)**

Xiaodong Zhou, Wanxiang Feng, Run-Wu Zhang, Libor Smejkal, Jairo Sinova, Yuriy Mokrousov, Yugui Yao

**Superconductivity from incoherent Cooper pairs in strong-coupling regime. (arXiv:2308.04508v4 [cond-mat.supr-con] UPDATED)**

Alexander A. Zyuzin, A. Yu. Zyuzin

**High-Order Topological Phase Diagram Revealed by Anomalous Nernst Effect in Janus ScClI Monolayer. (arXiv:2308.07550v3 [cond-mat.mes-hall] UPDATED)**

Ning-Jing Yang, Jian-Min Zhang

**Effects of internal and external decoherence on the resonant transport and Anderson localization of fermionic particles in the tight-binding chain. (arXiv:2311.05995v2 [cond-mat.mes-hall] UPDATED)**

Andrey R. Kolovsky

**The fate of high winding number topological phases in the disordered extended Su-Schrieffer-Heeger model. (arXiv:2311.11405v2 [cond-mat.str-el] UPDATED)**

Emmanuele G. Cinnirella, Andrea Nava, Gabriele Campagnano, Domenico Giuliano

Found 12 papers in prb Density Functional Perturbation Theory (DFPT) is a proven method for analyzing molecular and solid responses to perturbations. For metals, challenges arise due to Fermi-Dirac statistics and electronic bands crossing the Fermi energy. This work focuses on variational DFPT for metals, examining the convexity of the entropy function of occupation numbers. It emphasizes benefits from resmearing Fermi-Dirac broadening at finite temperature, details variational expressions for free energy derivatives, and addresses inaccuracies in unperturbed wavefunctions. The formalism is implemented in the ABINIT software. The Ising antiferromagnets on the triangular and on the pyrochlore lattices are two of the most iconic examples of magnetic frustration, paradigmatically illustrating many exotic properties such as emergent gauge fields, fractionalization, and topological order. In this paper, we show that the two i… Topological insulator (TI)/ferromagnet heterostructures hold immense application potential for spin-orbitronic memory technologies owing to strong spin-orbit coupling of TIs combined with ultrahigh spin-charge interconversion efficiency. Here, we use all-optical time-resolved magneto-optical Kerr ef… We investigate the phase diagram of a bilayer Kitaev honeycomb model with Ising interlayer interactions, deriving effective models via perturbation theory and performing Majorana mean-field theory calculations. We show that a diverse array of magnetic and topological phase transitions occur, dependi… Topological magnon edge modes have been proposed for the realization of robust, low-loss spintronic devices. However, ubiquitous many-body interactions that do not preserve particle number significantly compromise their topological protection. The authors show here that these interactions can lead to significant edge mode damping, hybridization with bulk modes, and coupling between edge modes on opposite sides. These findings pose challenges for the experimental realization of topological magnon edge modes, but can be overcome by the application of large magnetic fields. The electronic structure and topological state of an ${\mathrm{MoS}}_{2}$ monolayer decorated by iron or vanadium adatoms is investigated by first-principles calculations. It is shown that several Chern insulator phases occur in these samples in the presence of external strain or electric field. In … Recent advances in thermoelectric research have shed light on the promising properties of topological semimetals, which exhibit superior carrier mobility and electrical conductivity compared to traditional thermoelectric materials. Herein, we employ a first-principles method and semiclassical Boltzm… We present a self-consistent Maxwell-Bloch theory to analytically study the interaction between a nanostructure consisting of a metal nanoparticle and a monolayer of transition-metal dichalcogenide. For the combined system, we identify an effective eigenvalue equation that governs the center-of-mass… The electronic bands formed in moiré systems with twisted bilayer graphene (tBLG) have emerged as a tunable platform for studying many novel concepts of condensed matter physics due to new interaction and topological effects. In particular, the multitude of closely packed flat bands and a sequence o… We investigate quantum transport through a rectangular potential barrier in Weyl semimetals (WSMs) and multi-Weyl semimetals (MSMs), within the framework of Landauer-Büttiker formalism. Our study uncovers the role of nodal topology imprinted in the electric current and the shot noise. We find that, … In rare-earth intermetallic topological materials, carriers from topological bands mediate the magnetic interactions between local moments, giving rise to a plethora of exotic quantum phenomena. Recently, anomalous magnetic instability, helical spin orders, and skyrmions were found in topological se… When electron-hole pairs (excitons) are photoexcited into semiconductors containing a Fermi sea of mobile charges, they can form bound states known variously as trions, tetrons, or exciton-polarons. Crucially, the interaction occurs with those mobile carriers possessing distinguishable quantum numbers (e.g., spin). In monolayer TMD semiconductors, the availability of both spin and valley quantum numbers allows excitons to interact, simultaneously, with more than one type of quantum-mechanically distinguishable carrier. This leads to new types of composite excitons (e.g., six-particle “hexcitons”), which appear as distinct resonances in optical spectra.

Date of feed: Wed, 31 Jan 2024 04:17:10 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]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Variational density functional perturbation theory for metals**

Xavier Gonze, Samare Rostami, and Christian Tantardini

Author(s): Xavier Gonze, Samare Rostami, and Christian Tantardini

[Phys. Rev. B 109, 014317] Published Tue Jan 30, 2024

**Thermodynamics and fractal dynamics of a nematic spin ice: A doubly frustrated pyrochlore Ising magnet**

Jonathan N. Hallén, Claudio Castelnovo, and Roderich Moessner

Author(s): Jonathan N. Hallén, Claudio Castelnovo, and Roderich Moessner

[Phys. Rev. B 109, 014438] Published Tue Jan 30, 2024

**Laser fluence tunable spin transport and ultrafast demagnetization in ${\mathrm{BiSbTe}}_{1.5}{\mathrm{Se}}_{1.5}/{\mathrm{Co}}_{20}{\mathrm{Fe}}_{60}{\mathrm{B}}_{20}$ bilayers**

Suchetana Mukhopadhyay, Pratap Kumar Pal, Subhadip Manna, Chiranjib Mitra, and Anjan Barman

Author(s): Suchetana Mukhopadhyay, Pratap Kumar Pal, Subhadip Manna, Chiranjib Mitra, and Anjan Barman

[Phys. Rev. B 109, 024437] Published Tue Jan 30, 2024

**Topological and magnetic phase transitions in the bilayer Kitaev-Ising model**

Aayush Vijayvargia, Urban F. P. Seifert, and Onur Erten

Author(s): Aayush Vijayvargia, Urban F. P. Seifert, and Onur Erten

[Phys. Rev. B 109, 024439] Published Tue Jan 30, 2024

**Breakdown of chiral edge modes in topological magnon insulators**

Jonas Habel, Alexander Mook, Josef Willsher, and Johannes Knolle

Author(s): Jonas Habel, Alexander Mook, Josef Willsher, and Johannes Knolle

[Phys. Rev. B 109, 024441] Published Tue Jan 30, 2024

**Strain-induced high Chern number topological insulator state in Fe- or V-decorated ${\mathrm{MoS}}_{2}$ monolayers**

Siyavash Moradi and Ali Sadeghi

Author(s): Siyavash Moradi and Ali Sadeghi

[Phys. Rev. B 109, 035165] Published Tue Jan 30, 2024

**Excellent high-pressure-sustainable thermoelectric performance driven by metal-insulator topological phase transition in semimetal CaCdGe**

Liangyu Li, Zhenyu Ding, Rongman Gao, Miao Li, Shuo-Wang Yang, Gang Wu, and Xiaoping Yang

Author(s): Liangyu Li, Zhenyu Ding, Rongman Gao, Miao Li, Shuo-Wang Yang, Gang Wu, and Xiaoping Yang

[Phys. Rev. B 109, 035166] Published Tue Jan 30, 2024

**Spatial exciton localization at interfaces of metal nanoparticles and atomically thin semiconductors**

Robert Salzwedel, Lara Greten, Stefan Schmidt, Stephen Hughes, Andreas Knorr, and Malte Selig

Author(s): Robert Salzwedel, Lara Greten, Stefan Schmidt, Stephen Hughes, Andreas Knorr, and Malte Selig

[Phys. Rev. B 109, 035309] Published Tue Jan 30, 2024

**Non-Boltzmann thermoelectric transport in minimally twisted bilayer graphene**

Bhaskar Ghawri, Phanibhusan S. Mahapatra, Manjari Garg, Shinjan Mandal, Aditya Jayaraman, Kenji Watanabe, Takashi Taniguchi, Manish Jain, U. Chandni, and Arindam Ghosh

Author(s): Bhaskar Ghawri, Phanibhusan S. Mahapatra, Manjari Garg, Shinjan Mandal, Aditya Jayaraman, Kenji Watanabe, Takashi Taniguchi, Manish Jain, U. Chandni, and Arindam Ghosh

[Phys. Rev. B 109, 045436] Published Tue Jan 30, 2024

**Signature of nodal topology in nonlinear quantum transport across junctions in Weyl and multi-Weyl semimetals**

Suvendu Ghosh, Snehasish Nandy, Jian-Xin Zhu, and A. Taraphder

Author(s): Suvendu Ghosh, Snehasish Nandy, Jian-Xin Zhu, and A. Taraphder

[Phys. Rev. B 109, 045437] Published Tue Jan 30, 2024

**Charge density wave transition in the magnetic topological semimetal ${\mathrm{EuAl}}_{4}$**

R. Yang, C.-C. Le, P. Zhu, Z.-W. Wang, T. Shang, Y.-M. Dai, J.-P. Hu, and M. Dressel

Author(s): R. Yang, C.-C. Le, P. Zhu, Z.-W. Wang, T. Shang, Y.-M. Dai, J.-P. Hu, and M. Dressel

[Phys. Rev. B 109, L041113] Published Tue Jan 30, 2024

**Emergence of composite many-body exciton states in ${\mathrm{WS}}_{2}$ and ${\mathrm{MoSe}}_{2}$ monolayers**

J. Choi, J. Li, D. Van Tuan, H. Dery, and S. A. Crooker

Author(s): J. Choi, J. Li, D. Van Tuan, H. Dery, and S. A. Crooker

[Phys. Rev. B 109, L041304] Published Tue Jan 30, 2024

Found 3 papers in prl The lattice Schwinger model, the discrete version of QED in $1+1$ dimensions, is a well-studied test bench for lattice gauge theories. Here, we study the fractal properties of this model. We reveal the self-similarity of the ground state, which allows us to develop a recurrent procedure for finding … The first lattice QCD computation of $\pi \phantom{\rule{0}{0ex}}\mathrm{\Sigma}-\overline{K}\phantom{\rule{0}{0ex}}N$ scattering amplitudes supports the two-pole nature of the puzzling $\mathrm{\Lambda}(1405)$ resonance. Employing flux-grown single crystal ${\mathrm{WSe}}_{2}$, we report charge-carrier scattering behaviors measured in $h$-BN encapsulated monolayer field effect transistors. We observe a nonmonotonic change of transport mobility as a function of hole density in the degenerately doped sample, which can…

Date of feed: Wed, 31 Jan 2024 04:17:08 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]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Fractal States of the Schwinger Model**

Elena V. Petrova, Egor S. Tiunov, Mari Carmen Bañuls, and Aleksey K. Fedorov

Author(s): Elena V. Petrova, Egor S. Tiunov, Mari Carmen Bañuls, and Aleksey K. Fedorov

[Phys. Rev. Lett. 132, 050401] Published Tue Jan 30, 2024

**Two-Pole Nature of the $\mathrm{Λ}(1405)$ resonance from Lattice QCD**

John Bulava, Bárbara Cid-Mora, Andrew D. Hanlon, Ben Hörz, Daniel Mohler, Colin Morningstar, Joseph Moscoso, Amy Nicholson, Fernando Romero-López, Sarah Skinner, and André Walker-Loud (Baryon Scattering (BaSc) Collaboration)

Author(s): John Bulava, Bárbara Cid-Mora, Andrew D. Hanlon, Ben Hörz, Daniel Mohler, Colin Morningstar, Joseph Moscoso, Amy Nicholson, Fernando Romero-López, Sarah Skinner, and André Walker-Loud (Baryon Scattering (BaSc) Collaboration)

[Phys. Rev. Lett. 132, 051901] Published Tue Jan 30, 2024

**Transport Study of Charge-Carrier Scattering in Monolayer ${\mathrm{WSe}}_{2}$**

Andrew Y. Joe, Kateryna Pistunova, Kristen Kaasbjerg, Ke Wang, Bumho Kim, Daniel A. Rhodes, Takashi Taniguchi, Kenji Watanabe, James Hone, Tony Low, Luis A. Jauregui, and Philip Kim

Author(s): Andrew Y. Joe, Kateryna Pistunova, Kristen Kaasbjerg, Ke Wang, Bumho Kim, Daniel A. Rhodes, Takashi Taniguchi, Kenji Watanabe, James Hone, Tony Low, Luis A. Jauregui, and Philip Kim

[Phys. Rev. Lett. 132, 056303] Published Tue Jan 30, 2024

Found 2 papers in pr_res We report an experimental study of the structural transition of a stable complex plasma crystal to a solid-liquid phase coexistence by the controlled adjustment of the confinement potential, while keeping all other parameters constant. The experiments are carried out on a tabletop linear dusty plasm… The shift current effect, in materials lacking inversion symmetry, may potentially allow the performance of photovoltaics to surpass the Shockley-Queisser limit for traditional $p\text{−}n$ junction-based photovoltaics. Although the shift-current effect has been studied from first principles via sec…

Date of feed: Wed, 31 Jan 2024 04:17:08 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]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Structural transformation of dusty plasma crystal in dc discharge plasma by changing confinement ring bias**

S. Jaiswal, Connor Belt, Anton Kananovich, and E. M. Aguirre

Author(s): S. Jaiswal, Connor Belt, Anton Kananovich, and E. M. Aguirre

[Phys. Rev. Research 6, 013119] Published Tue Jan 30, 2024

**Ultrafast shift current dynamics in ${\mathrm{WS}}_{2}$ monolayer**

Fuxiang He, Daqiang Chen, Xinguo Ren, Sheng Meng, and Lixin He

Author(s): Fuxiang He, Daqiang Chen, Xinguo Ren, Sheng Meng, and Lixin He

[Phys. Rev. Research 6, 013123] Published Tue Jan 30, 2024

Found 3 papers in nano-lett

Date of feed: Tue, 30 Jan 2024 14:06:17 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]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **[ASAP] Room-Temperature Strong Coupling of Few-Exciton in a Monolayer WS2 with Plasmon and Dispersion Deviation**

Jie Zhong, Jun-Yu Li, Jin Liu, Yifan Xiang, He Feng, Renming Liu, Wei Li, and Xue-Hua WangNano LettersDOI: 10.1021/acs.nanolett.3c04158

**[ASAP] Single-Molecule Time-Resolved Spectroscopy in a Tunable STM Nanocavity**

Jiří Doležal, Amandeep Sagwal, Rodrigo Cezar de Campos Ferreira, and Martin ŠvecNano LettersDOI: 10.1021/acs.nanolett.3c04314

**[ASAP] Ultralow Auger-Assisted Interlayer Exciton Annihilation in WS2/WSe2 Moiré Heterobilayers**

Cheng-Syuan Cai, Wei-Yan Lai, Po-Hsuan Liu, Tzu-Chieh Chou, Ro-Ya Liu, Chih-Ming Lin, Shangjr Gwo, and Wei-Ting HsuNano LettersDOI: 10.1021/acs.nanolett.3c04688