• 文献标题:   Landau level transitions in doped graphene in a time dependent magnetic field
  • 文献类型:   Article
  • 作  者:   ARDENGHI JS, BECHTHOLD P, JASEN P, GONZALEZ E, NAGEL O
  • 作者关键词:   doped graphene, landau level, time dependent magnetic field, transition probabilitie
  • 出版物名称:   PHYSICA BCONDENSED MATTER
  • ISSN:   0921-4526 EI 1873-2135
  • 通讯作者地址:   UNS CONICET
  • 被引频次:   10
  • DOI:   10.1016/j.physb.2013.06.037
  • 出版年:   2013

▎ 摘  要

The aim of this work is to describe the Landau level transitions of Bloch electrons in doped graphene with an arbitrary time dependent magnetic field in the long wavelength approximation. In particular, transitions from the m Landau level to the m +/- 1 and m +/- 2 Landau levels are studied using the time dependent perturbation theory. Time intervals are computed in which transition probabilities tend to zero at a low order in the coupling constant. In particular, Landau level transitions are studied in the case of Bloch electrons traveling in the direction of the applied magnetic force and the results are compared with classical and revival periods of electrical current in graphene. Finally, current probabilities are computed for the n=0 and n=1 Landau levels showing expected oscillating behavior with modified cyclotron frequency. (c) 2013 Elsevier B.V. All rights reserved.