Work

Apparent inconsistency between Streda formula and Hall conductivity in reentrant integer quantum anomalous Hall effect in twisted MoTe 2

Year: 2025

Type: article

Abstract: In a system with a gap to charge excitations, there are two ways to measure the Hall conductivity: transport and via the Streda formula. Both measurements should agree, although in a recent experiment in twisted MoTe${}_{2}$ they do not. To resolve this discrepancy, the authors propose here a reentrant bubble/crystal phase. They substantiate this with an analysis of the experimental data. One reentrant phase may be masked by a phase transition, providing insight into the nature of a nearby superconducting phase.

Source: Physical review. B./Physical review. B

DOI: 10.1103/ml2q-39pp

Authors: Yi Huang, Seth Musser, Jihang Zhu, Yang-Zhi Chou, Sankar Das Sarma

Institutions: Joint Quantum Institute, University of Maryland, College Park

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4416692069

FWCI: 1.105

Cites: 80

Cited by: 3

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