• 文献标题:   Bound states in graphene via Fermi velocity modulation
  • 文献类型:   Article
  • 作  者:   GHOSH P, ROY P
  • 作者关键词:  
  • 出版物名称:   EUROPEAN PHYSICAL JOURNAL PLUS
  • ISSN:   2190-5444
  • 通讯作者地址:   Indian Stat Inst
  • 被引频次:   5
  • DOI:   10.1140/epjp/i2017-11323-2
  • 出版年:   2017

▎ 摘  要

We obtain zero energy solutions of a (2 + 1)-dimensional massless Dirac-like equation with a position-dependent Fermi velocity in the presence of an electrostatic potential. Several velocity profiles and electrostatic potentials have been considered and the relation with PT symmetry has been pointed out.