• 文献标题:   Atomic collapse and quasi-Rydberg states in graphene
  • 文献类型:   Article
  • 作  者:   SHYTOV AV, KATSNELSON MI, LEVITOV LS
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW LETTERS
  • ISSN:   0031-9007
  • 通讯作者地址:   Brookhaven Natl Lab
  • 被引频次:   118
  • DOI:   10.1103/PhysRevLett.99.246802
  • 出版年:   2007

▎ 摘  要

Charge impurities in graphene can host an infinite family of Rydberg-like resonance states of massless Dirac particles. These states, appearing for supercritical charge, are described by Bohr-Sommerfeld quantization of collapsing classical trajectories that descend on point charge, in analogy to the hydrogenic Rydberg states relation with planetary orbits. Strong tunnel coupling of these states to the Dirac continuum leads to resonance features in scattering on the impurities that manifest themselves in transport properties and in the local density of states.