• 文献标题:   Reply to "Comment on 'Raman spectra of misoriented bilayer graphene' "
  • 文献类型:   Editorial Material
  • 作  者:   PONCHARAL P, AYARI A, MICHEL T, SAUVAJOL JL
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   Univ Lyon 1
  • 被引频次:   4
  • DOI:   10.1103/PhysRevB.79.237402
  • 出版年:   2009

▎ 摘  要

In their Comment, Ni et al. show new data as supporting their hypothesis, i. e., the two-dimensional band blueshift between graphene and misoriented bilayer is caused by a reduction in the Fermi velocity. In the first part of our reply, we will demonstrate that the exhibited data, which typically shows a constant blueshift for various excitation energies are in contradiction with a change in Fermi velocity. In the second part we will explain how charge transfer from the substrate that affects the phonon-dispersion curve can account for the observed discrepancies and how this hypothesis is supported by experimental observations.