Found 10 papers in prb
Date of feed: Sat, 02 Sep 2023 03:17:06 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)

Cataloging topological phases of $N$ stacked Su-Schrieffer-Heeger chains by a systematic breaking of symmetries
Aayushi Agrawal and Jayendra N. Bandyopadhyay
Author(s): Aayushi Agrawal and Jayendra N. Bandyopadhyay

Two-dimensional (2D) model of a weak topological insulator with an $N$ stacked Su-Schrieffer-Heeger chain is studied. This study starts with a basic model with all the fundamental symmetries (chiral, time reversal, and particle hole) preserved. Different topological phases are introduced in this mo…


[Phys. Rev. B 108, 104101] Published Fri Sep 01, 2023

Magnon scattering off quantum Hall skyrmion crystals probes interplay of topology and symmetry breaking
Nilotpal Chakraborty, Roderich Moessner, and Benoit Doucot
Author(s): Nilotpal Chakraborty, Roderich Moessner, and Benoit Doucot

We introduce a model to study magnon scattering in skyrmion crystals, sandwiched between ferromagnets, which act as the source of magnons. Thanks to recent experimental advances, such a set-up can be realised in quantum Hall heterojunctions, and it is interesting as skyrmions are topological objects…


[Phys. Rev. B 108, 104401] Published Fri Sep 01, 2023

Classification of fermionic topological orders from congruence representations
Gil Young Cho, Hee-Cheol Kim, Donghae Seo, and Minyoung You
Author(s): Gil Young Cho, Hee-Cheol Kim, Donghae Seo, and Minyoung You

Two-dimensional topologically ordered states such as fractional quantum Hall fluids host anyonic excitations, which are relevant for realizing fault-tolerant topological quantum computers. Classification and characterization of topological orders have been intensely pursued in both the condensed mat…


[Phys. Rev. B 108, 115103] Published Fri Sep 01, 2023

Finite-temperature quantum noise correlations as a probe for topological helical edge modes
Sachiraj Mishra and Colin Benjamin
Author(s): Sachiraj Mishra and Colin Benjamin

The distinction between chiral, trivial helical, and topological helical edge modes can be effectively made using quantum noise measurements at finite temperatures. Quantum noise measurements consist of mainly two components: The first is thermal noise, whose provenance is thermal fluctuations, and …


[Phys. Rev. B 108, 115301] Published Fri Sep 01, 2023

Real Hopf insulator
Hyeongmuk Lim, Sunje Kim, and Bohm-Jung Yang
Author(s): Hyeongmuk Lim, Sunje Kim, and Bohm-Jung Yang

While stable and fragile topological insulators (TIs) are blind to unoccupied states, defining a delicate TI depends critically on the conduction band. Here, the authors report a new delicate TI, dubbed a “real Hopf insulator” (RHI), in a spinless PT-symmetric fermion system in three dimensions. Having two topological invariants characterizing both conduction and valence bands, the RHI features a bulk-boundary correspondence and reverting Thouless pump that must be described by using both bands simultaneously. This sheds light on the generic properties of delicate TIs.


[Phys. Rev. B 108, 125101] Published Fri Sep 01, 2023

Girvin-Macdonald-Platzman algebra, dipole symmetry, and Hohenberg-Mermin-Wagner theorem in the lowest Landau level
Lev Spodyneiko
Author(s): Lev Spodyneiko

After projection to the lowest Landau level translational invariance and particle conservation combine into dipole symmetry. We show that the new symmetry forbids spontaneous U(1) symmetry breaking at zero temperature. In the case of the spatially inhomogeneous magnetic field, where the translationa…


[Phys. Rev. B 108, 125102] Published Fri Sep 01, 2023

Anomalous Nernst effect and topological Nernst effect in the ferrimagnetic nodal-line semiconductor ${\mathrm{Mn}}_{3}{\mathrm{Si}}_{2}{\mathrm{Te}}_{6}$
Chen Ran, Xinrun Mi, Junying Shen, Honghui Wang, Kunya Yang, Yan Liu, Guiwen Wang, Guoyu Wang, Youguo Shi, Aifeng Wang, Yisheng Chai, Xiaolong Yang, Mingquan He, Xin Tong, and Xiaoyuan Zhou
Author(s): Chen Ran, Xinrun Mi, Junying Shen, Honghui Wang, Kunya Yang, Yan Liu, Guiwen Wang, Guoyu Wang, Youguo Shi, Aifeng Wang, Yisheng Chai, Xiaolong Yang, Mingquan He, Xin Tong, and Xiaoyuan Zhou

In the ferrimagnetic nodal-line semiconductor ${\mathrm{Mn}}_{3}{\mathrm{Si}}_{2}{\mathrm{Te}}_{6}$, colossal magnetoresistance (CMR) arises below ${T}_{\mathrm{c}}=78$ K due to the interplay of magnetism and topological nodal-line electronic structures. Here, we present electrical and thermoelectri…


[Phys. Rev. B 108, 125103] Published Fri Sep 01, 2023

Confined states and topological phases in two-dimensional quasicrystalline $π$-flux model
Rasoul Ghadimi, Masahiro Hori, Takanori Sugimoto, and Takami Tohyama
Author(s): Rasoul Ghadimi, Masahiro Hori, Takanori Sugimoto, and Takami Tohyama

Motivated by topological equivalence between an extended Haldane model and a chiral-$π$-flux model on a square lattice, we apply $π$-flux models to two-dimensional bipartite quasicrystals with rhombus tiles in order to investigate topological properties in aperiodic systems. Topologically trivial $π…


[Phys. Rev. B 108, 125104] Published Fri Sep 01, 2023

Flat-band optical phonons in twisted bilayer graphene
Emmanuele Cappelluti, Jose Angel Silva-Guillén, Habib Rostami, and Francisco Guinea
Author(s): Emmanuele Cappelluti, Jose Angel Silva-Guillén, Habib Rostami, and Francisco Guinea

Twisting bilayer sheets of graphene have been proven to be an efficient way to manipulate the electronic Dirac-like properties, resulting in flat bands at magic angles. Inspired by the electronic model, we develop a continuum model for the lattice dynamics of twisted bilayer graphene and we show tha…


[Phys. Rev. B 108, 125401] Published Fri Sep 01, 2023

Twisted bilayer graphene reveals its flat bands under spin pumping
Sonia Haddad, Takeo Kato, Jihang Zhu, and Lassaad Mandhour
Author(s): Sonia Haddad, Takeo Kato, Jihang Zhu, and Lassaad Mandhour

The salient property of the electronic band structure of twisted bilayer graphene (TBG), at the so-called magic angle (MA), is the emergence of flat bands around the charge neutrality point. These bands are associated with the observed superconducting phases and the correlated insulating states. Sca…


[Phys. Rev. B 108, L121101] Published Fri Sep 01, 2023

Found 1 papers in prl
Date of feed: Sat, 02 Sep 2023 03:17:05 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)

Hyperbolic Polaritons in Topological Nodal Ring Semimetals
Ashutosh Singh, Maria Sebastian, Yuanping Chen, Po-Yao Chang, and Alexey Belyanin
Author(s): Ashutosh Singh, Maria Sebastian, Yuanping Chen, Po-Yao Chang, and Alexey Belyanin

In mirror-symmetric systems, there is a possibility of the realization of extended gapless electronic states characterized as nodal lines or rings. Strain induced modifications to these states lead to the emergence of different classes of nodal rings with qualitatively different physical properties.…


[Phys. Rev. Lett. 131, 096902] Published Fri Sep 01, 2023

Found 1 papers in pr_res
Date of feed: Sat, 02 Sep 2023 03:17:06 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)

Ultrafast stroboscopic time-resolved magneto-optical imaging of domain wall motion in Pt/GdFeCo wires induced by a current pulse
Kazuma Ogawa, Naotaka Yoshikawa, Mio Ishibashi, Kay Yakushiji, Arata Tsukamoto, Masamitsu Hayashi, and Ryo Shimano
Author(s): Kazuma Ogawa, Naotaka Yoshikawa, Mio Ishibashi, Kay Yakushiji, Arata Tsukamoto, Masamitsu Hayashi, and Ryo Shimano

Fast and accurate current-driven manipulation of magnetic domain walls (DWs) is crucial for the realization of high-performance spintronic devices. Conventional methods to observe current-induced DW motion (CIDWM) require the accumulative measurement of magnetization dynamics, which is in general in…


[Phys. Rev. Research 5, 033151] Published Fri Sep 01, 2023