Compressibility of interacting electrons in bilayer graphene

被引：5
|
作者：
Yan, Xin-Zhong [1 ]
Ting, C. S. [2 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
[2] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA
来源：
PHYSICAL REVIEW B | 2011年 / 84卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.84.035457
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using the renormalized-ring-diagram approximation, we study the compressibility of the interacting electrons in bilayer graphene. The chemical potential and the compressibility of the electrons can be significantly altered by an energy gap (tunable by external gate voltages) between the valence and conduction bands. For zero gap and a typical finite gap in the experiments, we show both systems are stable.
引用
收藏
页数：5
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