Evidence of the fractional quantum spin Hall effect in moiré MoTe2

K Kang, B Shen, Y Qiu, Y Zeng, Z Xia, K Watanabe… - Nature, 2024 - nature.com
Quantum spin Hall (QSH) insulators are two-dimensional electronic materials that have a
bulk band gap similar to an ordinary insulator but have topologically protected pairs of edge …

Spin-resolved topology and partial axion angles in three-dimensional insulators

KS Lin, G Palumbo, Z Guo, Y Hwang… - Nature …, 2024 - nature.com
Symmetry-protected topological crystalline insulators (TCIs) have primarily been
characterized by their gapless boundary states. However, in time-reversal-(T-) invariant …

Antiferromagnetic quantum spin Hall insulators with high spin Chern numbers

Y Xue, W Xu, B Zhao, J Zhang, Z Yang - Physical Review B, 2023 - APS
Topological states in antiferromagnetic (AFM) systems have gained much attention recently.
However, general proposals for the realization of a two-dimensional (2D) AFM quantum spin …

Observation of the double quantum spin Hall phase in moir\'e WSe2

K Kang, Y Qiu, K Watanabe, T Taniguchi… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum spin Hall (QSH) insulators are a topologically protected phase of matter in two
dimensions that can support non-dissipative spin transport. A hallmark of the phase is a pair …

Observation of the fractional quantum spin Hall effect in moir\'e MoTe2

K Kang, B Shen, Y Qiu, K Watanabe… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum spin Hall (QSH) insulators are two-dimensional electronic materials that have a
bulk band gap like an ordinary insulator but have topologically protected pairs of edge …

Double Quantum Spin Hall Phase in Moiré WSe2

K Kang, Y Qiu, K Watanabe, T Taniguchi, J Shan… - Nano Letters, 2024 - ACS Publications
Quantum spin Hall (QSH) insulators are topologically protected phases of matter in two
dimensions that can support a pair of helical edge states surrounding an insulating bulk. A …

Spin-charge separation and quantum spin Hall effect of -bismuthene

AC Tyner, P Goswami - Scientific reports, 2023 - nature.com
Multiple works suggest the possibility of classification of quantum spin Hall effect with
magnetic flux tubes, which cause separation of spin and charge degrees of freedom and …

Orbital doublet driven even-spin Chern insulators

L Liu, Y Liu, J Li, H Wu, Q Liu - Physical Review B, 2024 - APS
Quantum spin Hall insulators hosting edge spin currents hold great potential for low-power
spintronic devices. In this paper, we present a universal approach to achieve a high and …

Tunability of topological edge states in germanene at room temperature

DJ Klaassen, I Boutis, C Castenmiller… - Journal of Materials …, 2024 - pubs.rsc.org
Germanene is a two-dimensional topological insulator with a large topological band gap.
For its use in low-energy electronics, such as topological field effect transistors and …

Photoinduced Electronic and Spin Topological Phase Transitions in Monolayer Bismuth

B Peng, GF Lange, D Bennett, K Wang, RJ Slager… - Physical Review Letters, 2024 - APS
Ultrathin bismuth exhibits rich physics including strong spin-orbit coupling, ferroelectricity,
nontrivial topology, and light-induced structural dynamics. We use ab initio calculations to …