• 文献标题:   Quantum Hall Effect and Different Zero-Energy Modes of Graphene
  • 文献类型:   Article
  • 作  者:   SETARE MR, JAHANI D
  • 作者关键词:  
  • 出版物名称:   CHINESE PHYSICS LETTERS
  • ISSN:   0256-307X EI 1741-3540
  • 通讯作者地址:   Payame Noor Univ
  • 被引频次:   3
  • DOI:   10.1088/0256-307X/28/9/097302
  • 出版年:   2011

▎ 摘  要

The effect of an inhomogeneous magnetic field, which varies inversely with distance on the ground state energy level of graphene, is studied. We analytically show that graphene under the influence of a magnetic field arising from a straight long current-carrying wire (proportional to the magnetic field from carbon nanotubes and nanowires) exhibits zero-energy solutions and find that contrary to the case of a uniform magnetic field for which the zero-energy modes show the localization of electrons entirely on just one sublattice corresponding to a single valley Hamiltonian, zero-energy solutions in this case reveal that the probabilities for the electrons to be on both sublattices, say A and B, are the same.