• 文献标题:   Evidence for a topological "exciton Fermi sea" in bilayer graphene
  • 文献类型:   Article
  • 作  者:   ZALETEL MP, GERAEDTS S, PAPIC Z, REZAYI EH
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   Princeton Univ
  • 被引频次:   4
  • DOI:   10.1103/PhysRevB.98.045113
  • 出版年:   2018

▎ 摘  要

The quantum Hall physics of bilayer graphene is extremely rich due to the interplay between a layer degree of freedom and delicate fractional states. Recent experiments show that when an electric field perpendicular to the bilayer causes Landau levels of opposing layers to cross in energy, an even-denominator Hall plateau can coexist with a finite density of interlayer excitons. We present theoretical and numerical evidence that this observation is due to a new phase of matter: a Fermi sea of topological excitons.