论文标题
单层和几层石墨烯中的超导性：I。审查可能的配对对称性和基本电子特性
Superconductivity in monolayer and few-layer graphene: I. Review of possible pairing symmetries and basic electronic properties
论文作者
论文摘要
We review all symmetry-allowed spin-singlet and spin-triplet superconducting (SC) order parameters in graphene ($s$-wave, $d$-wave, $p$-wave, and $f$-wave) generated by generic onsite, nearest-neighbor (NN), and next-to-nearest-neighbor (NNN) pairing interactions in a tight-binding model.对于每个配对通道，我们同时计算了状态对能量，化学势和配对强度的频带结构和依赖性。特别是，我们区分了淋巴结超导状态和完全间隙的状态，并研究间隙闭合点对化学电位和超导配对强度的依赖性。我们进一步研究了单层，三层ABC和ABA石墨烯之间的差异，包括考虑三角翘曲的影响。
We review all symmetry-allowed spin-singlet and spin-triplet superconducting (SC) order parameters in graphene ($s$-wave, $d$-wave, $p$-wave, and $f$-wave) generated by generic onsite, nearest-neighbor (NN), and next-to-nearest-neighbor (NNN) pairing interactions in a tight-binding model. For each pairing channel, we calculate both the band structure and the dependence of the density of states on energy, chemical potential, and on the pairing strength. In particular, we distinguish between nodal superconducting states and fully gapped states and study the dependence of gap closing points on the chemical potential and the superconducting pairing strength. We further investigate the difference between mono-, bi-, and tri-layer ABC and ABA graphene, including accounting for the effects of trigonal warping.
