Paper Image

Fractional quantum spin Hall effect in twisted bilayer molybdenum ditelluride

Published on:

5 February 2024

Primary Category:

Mesoscale and Nanoscale Physics

Paper Authors:

Kaifei Kang,

Bowen Shen,

Yichen Qiu,

Kenji Watanabe,

Takashi Taniguchi,

Jie Shan,

Kin Fai Mak

Bullets

Key Details

Fractional quantum spin Hall state seen at filling factor 3, with 3/2 conductance quantum per edge

Indicates charge fractionalization unlike previously seen integer cases

Enabled by flat spin-contrasting Chern bands in small-angle twisted TMD

Could allow realizing unusual topological phases like non-abelian anyons

Also found single, double, and triple integer quantum spin Hall states at fillings 2, 4, and 6

AI generated summary

Fractional quantum spin Hall effect in twisted bilayer molybdenum ditelluride

Researchers observed a fractional quantum spin Hall state in twisted bilayer molybdenum ditelluride, indicating charge fractionalization and potential for realizing unusual topological phases and non-abelian anyons in tunable moiré materials.

Answers from this paper

Comments

No comments yet, be the first to start the conversation...

Sign up to comment on this paper

Sign Up