• 文献标题:   Superconductivity in Graphene induced by the rotated layer
  • 文献类型:   Article
  • 作  者:   SCHMELTZER D
  • 作者关键词:  
  • 出版物名称:   ANNALS OF PHYSICS
  • ISSN:   0003-4916 EI 1096-035X
  • 通讯作者地址:   CUNY
  • 被引频次:   0
  • DOI:   10.1016/j.aop.2020.168305
  • 出版年:   2020

▎ 摘  要

We linearize the Hamiltonian for Graphene in the vicinity of the nodes and obtain a two dimensional Dirac massless Hamiltonian for each layer. Including the spin-orbit a mass is introduced. The attractive interaction is obtained as a result of rotation of one of the layer. The mass introduced gives rise to attraction for small angle rotation. Using the spinors representation in the vicinity of the nodal Dirac points the interactions are modified. The parity anomaly resulting from rotations modifies the "APS"index theorem of "Gravitational""Chern Simons". We show directly that the combination of rotation and projection of the spinors in the vicinity of the Dirac nodes are modified in such way, that a repulsive real space interaction, becomes attractive in the restricted momentum space, in certain directions. The chemical potential controls the behavior. (C) 2020 Published by Elsevier Inc.