Quantum Anomalous Hall Crystal at Fractional Filling of Moiré Superlattices-Reference-Cited by-同舟云学术

Quantum Anomalous Hall Crystal at Fractional Filling of Moiré Superlattices

Published:2024-08-07 Issue:6 Volume:133 Page:
ISSN:0031-9007
Container-title:Physical Review Letters
language:en
Short-container-title:Phys. Rev. Lett.

Author:

Sheng D. N.¹^ORCID,Reddy Aidan P.²^ORCID,Abouelkomsan Ahmed²^ORCID,Bergholtz Emil J.³^ORCID,Fu Liang²^ORCID

Affiliation:

1. California State University Northridge

2. Massachusetts Institute of Technology

3. Stockholm University

Abstract

We predict the emergence of a state of matter with intertwined ferromagnetism, charge order, and topology in fractionally filled moiré superlattice bands. Remarkably, these exhibit a quantized integer Hall conductance that is different than expected from the filling and Chern number of the band. Microscopic calculations show that this phase is robustly favored at half-filling (ν=1/2) at larger twist angles of the twisted semiconductor bilayer tMoTe2.

Published by the American Physical Society

2024

Funder

U.S. Department of Energy

Basic Energy Sciences

Massachusetts Institute of Technology

Air Force Office of Scientific Research

Knut och Alice Wallenbergs Stiftelse

Vetenskapsrådet

Göran Gustafssons Stiftelse för Naturvetenskaplig och Medicinsk Forskning

Simons Foundation

MIT SuperCloud