• 文献标题:   Quasiperiodic graphene superlattices: Self-similarity of the Landau level spectra
  • 文献类型:   Article
  • 作  者:   DE DIOSLEYVA M, HERNANDEZBERTRAN MA, MORALES AL, DUQUE CA
  • 作者关键词:   quasi periodic graphene superlattice, magnetic field effect
  • 出版物名称:   SOLID STATE COMMUNICATIONS
  • ISSN:   0038-1098 EI 1879-2766
  • 通讯作者地址:   Univ Antioquia UdeA
  • 被引频次:   0
  • DOI:   10.1016/j.ssc.2018.09.011
  • 出版年:   2018

▎ 摘  要

We have numerically calculated the magnetic subbands of a quasiperiodic Fibonacci graphene superlattice subject to a perpendicular magnetic field. It is shown that, when all energies and lengths are written in units of the cyclotron energy and cyclotron radius, respectively, these subbands exhibit a self-similar behavior at two magnetic fields related by tau(4). To see explicitly that behavior, the energy spectrum corresponding to one of the fields must be rigidly shifted upwards in energy and in the lateral direction. It was also found that to obtain a good coincidence between both spectra, one of them must be properly resealed in energy.