• 文献标题:   Quantum valley Hall effect in proximity-induced superconducting graphene: An experimental window for deconfined quantum criticality
  • 文献类型:   Article
  • 作  者:   GHAEMI P, RYU S, LEE DH
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   Univ Calif Berkeley
  • 被引频次:   24
  • DOI:   10.1103/PhysRevB.81.081403
  • 出版年:   2010

▎ 摘  要

We show that when superconductivity is induced in graphene through proximity effect, a superconducting vortex is dressed with an interesting pattern of textured order parameters. Furthermore, passing a supercurrent in a superconducting graphene sample induces accumulation of valley pseudospin quantum number at edges: the "quantum valley Hall effect" will be observable in superconducting graphene. These effects reveal a quantum duality between different order parameters that is at heart of the Wess-Zumino-Witten term.