Khveshchenko D V
Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC 27599, USA.
J Phys Condens Matter. 2009 Feb 18;21(7):075303. doi: 10.1088/0953-8984/21/7/075303. Epub 2009 Jan 29.
Motivated by the results of recent photoemission and tunneling studies, we discuss potential many-body sources of a finite gap in the Dirac fermion spectrum of graphene. Specifically, we focus on the putative Peierls- and Cooper-like pairing instabilities, which can be driven by sufficiently strong Coulomb and electron-phonon interactions, respectively. Our results compare favorably with the available experimental and Monte Carlo data.
受近期光电子发射和隧穿研究结果的推动，我们讨论了石墨烯狄拉克费米子谱中有限能隙的潜在多体来源。具体而言，我们关注假定的类佩尔斯和类库珀配对不稳定性，它们分别可由足够强的库仑相互作用和电子 - 声子相互作用驱动。我们的结果与现有的实验和蒙特卡罗数据相比具有优势。
