科研之友
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摘要
We calculate the dynamical polarization function and solve a self-consistent gap equation in the random phase approximation in undoped ABC-stacked n-layer graphene. We find that the gap is maximal in trilayer graphene and decreases monotonously for n >= 4 because the effects of screening in the gap equation win over those connected with the flattening of electron bands as n increases.
- 出版日期2013-11-27
- 单位武汉大学
