• 文献标题:   Model of an Exotic Chiral Superconducting Phase in a Graphene Bilayer
  • 文献类型:   Article
  • 作  者:   HOSSEINI MV, ZAREYAN M
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW LETTERS
  • ISSN:   0031-9007 EI 1079-7114
  • 通讯作者地址:   Inst Adv Studies Basic Sci IASBS
  • 被引频次:   29
  • DOI:   10.1103/PhysRevLett.108.147001
  • 出版年:   2012

▎ 摘  要

We theoretically demonstrate the formation of a new type of unconventional superconductivity in graphene materials, which exhibits a gapless property. The studied superconductivity is based on an interlayer pairing of chiral electrons in bilayer graphene, which results in an exotic s-wave spin-triplet condensate order with anomalous thermodynamic properties. These include the possibility of a temperature-induced condensation causing an increase of the pairing gap with increasing temperature and an entropy of the stable superconducting state which can be higher than its value in the normal state. Our study reveals the analogy of the interlayer superconductivity in graphene materials to the color superconductivity in dense quark matter and the gapless pairing states in nuclear matter and ultracold atomic gases.