Journal
NANOTECHNOLOGY
Volume 23, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/23/5/052001
Keywords
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Funding
- State of Florida
- NSF [DMR-1004545]
- Welch Foundation [TBF1473]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1004545] Funding Source: National Science Foundation
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In this article we review the quantum Hall physics of graphene-based two-dimensional electron systems, with a special focus on recent experimental and theoretical developments. We explain why graphene and bilayer graphene can be viewed respectively as J = 1 and 2 chiral two-dimensional electron gases (C2DEGs), and why this property frames their quantum Hall physics. The current status of experimental and theoretical work on the role of electron-electron interactions is reviewed at length with an emphasis on unresolved issues in the field, including the role of disorder in current experiments. Special attention is given to the interesting low magnetic field limit, and to the relationship between quantum Hall effects and the spontaneous anomalous Hall effects that might occur in bilayer graphene systems in the absence of a magnetic field.
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