Observation of Distinct Electron-Phonon Couplings in Gated Bilayer Graphene

被引：111
|
作者：
Malard, L. M. [1 ]
Elias, D. C. [1 ]
Alves, E. S. [1 ]
Pimenta, M. A. [1 ]
机构：
[1] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 25期
关键词：
D O I：
10.1103/PhysRevLett.101.257401
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A Raman study of a back gated bilayer graphene sample is presented. The changes in the Fermi level induced by charge transfer splits the Raman G band, hardening its higher component and softening the lower one. These two components are associated with the symmetric (S) and antisymmetric vibration (AS) of the atoms in the two layers, the later one becoming Raman active due to inversion symmetry breaking. The phonon hardening and softening are explained by considering the selective coupling of the S and AS phonons with interband and intraband electron-hole pairs.
引用
收藏
页数：4
相关论文
共 50 条
  • [31] Phonon spectrum and electron-phonon coupling in zigzag graphene nanoribbons
    Zhang, Ting
    Heid, Rolf
    Bohnen, Klaus-Peter
    Sheng, Ping
    Chan, C. T.
    PHYSICAL REVIEW B, 2014, 89 (20):
  • [32] Electron-phonon coupling and Raman spectroscopy in graphene
    Castro Neto, A. H.
    Guinea, Francisco
    PHYSICAL REVIEW B, 2007, 75 (04):
  • [33] Interplay of Coulomb and electron-phonon interactions in graphene
    Basko, D. M.
    Aleiner, I. L.
    PHYSICAL REVIEW B, 2008, 77 (04):
  • [34] Strong electron-phonon coupling in the σ band of graphene
    Mazzola, Federico
    Frederiksen, Thomas
    Balasubramanian, Thiagarajan
    Hofmann, Philip
    Hellsing, Bo
    Wells, Justin W.
    PHYSICAL REVIEW B, 2017, 95 (07)
  • [35] Electron-phonon relaxation in graphene quantum dots
    Jaeger, Heather
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2012, 243
  • [36] Effect of electron-phonon interaction on spectroscopies in graphene
    Carbotte, J. P.
    Nicol, E. J.
    Sharapov, S. G.
    PHYSICAL REVIEW B, 2010, 81 (04):
  • [37] Influence of correlations on transitive electron-phonon couplings in cuprate superconductors
    Seibold, G.
    Grilli, M.
    Lorenzana, J.
    PHYSICAL REVIEW B, 2011, 83 (17)
  • [38] Charge transport in organic semiconductors: The interplay between electronic couplings and electron-phonon couplings
    Bredas, Jean-Luc
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2013, 245
  • [39] Effective mass of electron in monolayer graphene: Electron-phonon interaction
    Tiras, E.
    Ardali, S.
    Tiras, T.
    Arslan, E.
    Cakmakyapan, S.
    Kazar, O.
    Hassan, J.
    Janzen, E.
    Ozbay, E.
    JOURNAL OF APPLIED PHYSICS, 2013, 113 (04)
  • [40] Ultrafast Umklapp-assisted electron-phonon cooling in magic-angle twisted bilayer graphene
    Mehew, Jake Dudley
    Merino, Rafael Luque
    Ishizuka, Hiroaki
    Block, Alexander
    Merida, Jaime Diez
    Carlon, Andres Diez
    Watanabe, Kenji
    Taniguchi, Takashi
    Levitov, Leonid S.
    Efetov, Dmitri K.
    Tielrooij, Klaas-Jan
    SCIENCE ADVANCES, 2024, 10 (06)
12345