Found 10 papers in prb 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… 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… 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… 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 … 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 $P\phantom{\rule{0}{0ex}}T$-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. 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… 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… 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… 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… 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…

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

[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

[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

[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

[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

[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

[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

[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

[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

[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

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

Found 1 papers in prl 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.…

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

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

Found 1 papers in pr_res 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…

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

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