Massive Dirac fermions in single-layer graphene
Massive Dirac fermions in single-layer graphene
复制标题
DOI：
10.1088/0953-8984/21/7/075303
复制
发表时间：
2008-07
期刊：
影响因子：
--
通讯作者：
D. V. Khveshchenko
中科院分区：
文献类型：
--
作者：
D. V. Khveshchenko
受最近光电子和隧道研究结果的启发，我们讨论了石墨烯狄拉克费米子光谱中有限间隙的潜在多体源。具体来说，我们关注假定的类 Peierls 和 Cooper 配对不稳定性，它们分别由足够强的库仑和电子声子相互作用驱动。我们的结果与现有的实验数据和蒙特卡罗数据相比毫不逊色。
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.