Spontaneous Quantum Hall States in Chirally Stacked Few-Layer Graphene Systems
Open Access
- 11 April 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 106 (15), 156801
- https://doi.org/10.1103/physrevlett.106.156801
Abstract
Chirally stacked -layer graphene systems with exhibit a variety of distinct broken symmetry states in which charge density contributions from different spins and valleys are spontaneously transferred between layers. We explain how these states are distinguished by their charge, spin, and valley Hall conductivities, by their orbital magnetizations, and by their edge state properties. We argue that valley Hall states have [] edge channels per spin valley.
Keywords
Funding Information
- U.S. Department of Energy
- National Science Foundation
- Army Research Office
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