Journal article
Quantum Hall valley nematics
- Abstract:
- Two-dimensional electron gases in strong magnetic fields provide a canonical platform for realizing a variety of electronic ordering phenomena. Here we review the physics of one intriguing class of interaction-driven quantum Hall states: quantum Hall valley nematics. These phases of matter emerge when the formation of a topologically insulating quantum Hall state is accompanied by the spontaneous breaking of a point-group symmetry that combines a spatial rotation with a permutation of valley indices. The resulting orientational order is particularly sensitive to quenched disorder, while quantum Hall physics links charge conduction to topological defects. We discuss how these combine to yield a rich phase structure, and their implications for transport and spectroscopy measurements. In parallel, we discuss relevant experimental systems. We close with an outlook on future directions.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 1.3MB, Terms of use)
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- Publisher copy:
- 10.1088/1361-648X/ab0636
Authors
- Publisher:
- IOP Publishing
- Journal:
- Journal of Physics: Condensed Matter More from this journal
- Volume:
- 31
- Issue:
- 27
- Article number:
- 273001
- Publication date:
- 2019-04-25
- Acceptance date:
- 2019-02-11
- DOI:
- EISSN:
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1361-648X
- ISSN:
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0953-8984
- Keywords:
- Pubs id:
-
pubs:969967
- UUID:
-
uuid:5e7b8f6a-a0bc-4701-ab98-fd18c6433b47
- Local pid:
-
pubs:969967
- Source identifiers:
-
969967
- Deposit date:
-
2019-02-11
Terms of use
- Copyright holder:
- IOP Publishing Ltd
- Copyright date:
- 2019
- Rights statement:
- © 2019 IOP Publishing Ltd.
- Notes:
- This is the accepted manuscript version of the article. The final version is available online from IOP Publishing at: https://doi.org/10.1088/1361-648X/ab0636
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