• 文献标题:   Raman spectroscopy of magneto-phonon resonances in graphene and graphite
  • 文献类型:   Article
  • 作  者:   GOLER S, YAN J, PELLEGRINI V, PINCZUK A
  • 作者关键词:   graphene, graphite, raman spectroscopy, magnetophonon resonance
  • 出版物名称:   SOLID STATE COMMUNICATIONS
  • ISSN:   0038-1098 EI 1879-2766
  • 通讯作者地址:   NEST CNR Ist Nanosci
  • 被引频次:   19
  • DOI:   10.1016/j.ssc.2012.04.020
  • 出版年:   2012

▎ 摘  要

The magneto-phonon resonance or MPR occurs in semiconductor materials when the energy spacing between Landau levels is continuously tuned to cross the energy of an optical phonon mode. MPRs have been largely explored in bulk semiconductors, in two-dimensional systems and in quantum dots. Recently there has been significant interest in the MPR interactions of the Dirac fermion magnetoexcitons in graphene, and a rich splitting and anti-crossing phenomena of the even parity E-2g long wavelength optical phonon mode have been theoretically proposed and experimentally observed. The MPR has been found to crucially depend on disorder in the graphene layer. This is a feature that creates new venues for the study of interplays between disorder and interactions in the atomic layers. We review here the fundamentals of MRP in graphene and the experimental Raman scattering works that have led to the observation of these phenomena in graphene and graphite. (c) 2012 Elsevier Ltd. All rights reserved.