Zobrazeno 1 - 10
of 3 217
pro vyhledávání: '"quantum spin Hall insulator"'
To assess prior mean-field studies that the interacting Kane-Mele model supports a novel antiferromagnetic Chern insulating phase (AFCI) for a wide range of sublattice potentials, we analyze the Kane-Mele-Hubbard model in the presence of a sublattice
Externí odkaz:
http://arxiv.org/abs/2409.07557
Nonlinear Hall effect (NHE) can be generated via Berry curvature dipole (BCD) on nonequilibrium Fermi surface in a non-magnetic system without inversion symmetry.To achieve a large BCD, strong local Berry curvatures and their variation with respect t
Externí odkaz:
http://arxiv.org/abs/2406.16261
Publikováno v:
Phys. Rev. B 110, 134511 (2024)
The superconducting diode effect (SDE) is a magneto-electric phenomenon where an external magnetic field imparts a non-zero center-of-mass momentum to Cooper pairs, either facilitating or hindering the flow of supercurrent depending on its direction.
Externí odkaz:
http://arxiv.org/abs/2406.08669
Autor:
Liu, Xiangyang, Lai, Junwen, Zhan, Jie, Yu, Tianye, Shi, Wujun, Liu, Peitao, Chen, Xing-Qiu, Sun, Yan
Dual quantum spin Hall insulator (QSHI) is a newly discovered topological state in the 2D material TaIrTe$_4$, exhibiting both a traditional $Z_2$ band gap at charge neutrality point and a van Hove singularity (VHS) induced correlated $Z_2$ band gap
Externí odkaz:
http://arxiv.org/abs/2406.00979
Quantum spin Hall (QSH) insulators have attracted intensive experimental and theoretical studies due to their beneficial applications in spintronic devices. Density functional theory (DFT) meets challenges when describing the electronic structure of
Externí odkaz:
http://arxiv.org/abs/2406.12124
Topological insulating states in two-dimensional (2D) materials are ideal systems to study different types of quantized response signals due to their in gap metallic states. Very recently, the quantum spin Hall (QSH) effect was discovered in monolaye
Externí odkaz:
http://arxiv.org/abs/2404.13519
Autor:
Tang, Jian, Ding, Thomas Siyuan, Chen, Hongyu, Gao, Anyuan, Qian, Tiema, Huang, Zumeng, Sun, Zhe, Han, Xin, Strasser, Alex, Li, Jiangxu, Geiwitz, Michael, Shehabeldin, Mohamed, Belosevich, Vsevolod, Wang, Zihan, Wang, Yiping, Watanabe, Kenji, Taniguchi, Takashi, Bell, David C., Wang, Ziqiang, Fu, Liang, Zhang, Yang, Qian, Xiaofeng, Burch, Kenneth S., Shi, Youguo, Ni, Ni, Chang, Guoqing, Xu, Su-Yang, Ma, Qiong
The convergence of topology and correlations represents a highly coveted realm in the pursuit of novel quantum states of matter. Introducing electron correlations to a quantum spin Hall (QSH) insulator can lead to the emergence of a fractional topolo
Externí odkaz:
http://arxiv.org/abs/2403.15912
We study the edges of fractional quantum spin Hall insulators (FQSH) with half-integer spin Hall conductance. These states can be viewed as symmetric combinations of a spin-up and spin-down half-integer fractional quantum Hall state (FQH) that are ti
Externí odkaz:
http://arxiv.org/abs/2403.03964
Gapless topological boundary states characterize nontrivial topological phases arising from the bulk-boundary correspondence in symmetry-protected topological materials, such as the emergence of helical edge states in a two-dimensional $\mathbb{Z}_2$
Externí odkaz:
http://arxiv.org/abs/2312.11794
Autor:
Ishii, Chihiro, Takane, Yositake
Publikováno v:
J. Phys. Soc. Jpn. 92, 124707 (2023)
We focus on a scenario of non-Hermitian bulk--boundary correspondence that uses a topological invariant defined in a bulk geometry under a modified periodic boundary condition. Although this has succeeded in describing the topological nature of vario
Externí odkaz:
http://arxiv.org/abs/2311.13142