Apparent inconsistency between Streda formula and Hall conductivity in reentrant integer quantum anomalous Hall effect in twisted <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>MoTe</mml:mi> <mml:mn>2</mml:mn> </mml:msub

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.

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Publication Details

Journal
Physical review. B./Physical review. B
Published
2025-11-26
DOI
https://doi.org/10.1103/ml2q-39pp
Citations
3
Primary Topic
Topological Materials and Phenomena
Type
article
Field-Weighted Citation Impact
3.74
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article

Apparent inconsistency between Streda formula and Hall conductivity in reentrant integer quantum anomalous Hall effect in twisted <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>MoTe</mml:mi> <mml:mn>2</mml:mn> </mml:msub

S. Das Sarma, Seth Musser, Yang-Zhi Chou, Jihang Zhu et al.
3 citations
Physical review. B./Physical review. B
Topological Materials and Phenomena
3.74
article

Apparent inconsistency between Streda formula and Hall conductivity in reentrant integer quantum anomalous Hall effect in twisted <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>MoTe</mml:mi> <mml:mn>2</mml:mn> </mml:msub

S. Das Sarma, Seth Musser, Yang-Zhi Chou, Jihang Zhu, Yi Huang
article en
3 citations

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.

Physical review. B./Physical review. BVol. 112(19)
Joint Quantum Institute (US), University of Maryland, College Park (US)
Openalex Percentile: Top 6%
Topological Materials and Phenomena
3.74
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Apparent inconsistency between Streda formula and Hall conductivity in reentrant integer quantum anomalous Hall effect in twisted <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>MoTe</mml:mi> <mml:mn>2</mml:mn> </mml:msub — S. Das Sarma, Seth Musser, et al. · Physical review. B./Physical review. B (2025) | TGRS Research Map | TGRS