期刊
SOLID STATE COMMUNICATIONS
卷 149, 期 27-28, 页码 1117-1122出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2009.02.053
关键词
Graphene; Electronic structure
In single-layer graphene sheets non-local interband exchange leads to a renormalized Fermi-surface effective mass which vanishes in the low carrier-density limit. We report on a comparative study of Fermi surface effective mass renormalization in single-layer and AB-stacked bilayer graphene. We explain why the mass does not approach zero in the bilayer case, although its value is still strongly suppressed. (C) 2009 Elsevier Ltd. All rights reserved.
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