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 …

Polarization-driven band topology evolution in twisted MoTe2 and WSe2

XW Zhang, C Wang, X Liu, Y Fan, T Cao… - Nature …, 2024 - nature.com
Motivated by recent experimental observations of opposite Chern numbers in R-type twisted
MoTe2 and WSe2 homobilayers, we perform large-scale density-functional-theory …

Contrasting twisted bilayer graphene and transition metal dichalcogenides for fractional Chern insulators: An emergent gauge picture

H Li, Y Su, YB Kim, HY Kee, K Sun, SZ Lin - Physical Review B, 2024 - APS
The recent experimental discovery of the zero-field fractional Chern insulator (FCI) in twisted
MoTe 2 moiré superlattices has sparked immense interest in this exotic topological quantum …

Higher vortexability: zero field realization of higher Landau levels

M Fujimoto, DE Parker, J Dong, E Khalaf… - arXiv preprint arXiv …, 2024 - arxiv.org
The rise of moir\'{e} materials has led to experimental realizations of integer and fractional
Chern insulators in small or vanishing magnetic fields. At the same time, a set of minimal …

Topology, magnetism and charge order in twisted MoTe2 at higher integer hole fillings

T Wang, M Wang, W Kim, SG Louie, L Fu… - arXiv preprint arXiv …, 2023 - arxiv.org
Twisted homobilayer transition metal dichalcogenide (TMD) attracts an expanding
experimental interest recently for exhibiting a variety of topological and magnetic states even …

Variational Mapping of Chern Bands to Landau Levels: Application to Fractional Chern Insulators in Twisted MoTe

B Li, F Wu - arXiv preprint arXiv:2405.20307, 2024 - arxiv.org
We present a theoretical study of mapping between Chern bands and generalized Landau
levels in twisted bilayer MoTe $ _2 $, where fractional Chern insulators have been …

Dynamical chiral Nernst effect in twisted Van der Waals few layers

J Li, D Zhai, C Xiao, W Yao - Quantum Frontiers, 2024 - Springer
The Nernst effect is a fundamental thermoelectric conversion phenomenon that was deemed
to be possible only in systems with magnetic field or magnetization. In this work, we propose …

Ferromagnetism and Topology of the Higher Flat Band in a Fractional Chern Insulator

H Park, J Cai, E Anderson, XW Zhang, X Liu… - arXiv preprint arXiv …, 2024 - arxiv.org
The recent observation of the fractional quantum anomalous Hall effect in moir\'e fractional
Chern insulators (FCI) provides opportunities for investigating zero magnetic field anyons …

[PDF][PDF] Theory of lattice relaxation in non-periodic

中辻, 直斗 - 2024 - ir.library.osaka-u.ac.jp
Moiré materials, created by stacking two-dimensional materials with lattice mismatch, have
attracted attention as a platform of the novel physical phenomena. Twisted bilayer graphene …