Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Filling-factor-dependent mangetophonon resonance in graphene.
AU - Goerbig, M.O.
AU - Fuchs, J.N.
AU - Kechedzhi, K.
AU - Falko, Vladimir I.
N1 - We predicted a peculiar fine structure acquired by the in-plane optical phonon in monolayer graphene (G band in its Raman spectrum) when it is brought into resonance with the lowest inter-Landau-level transition in this material. This effect can be used for a direct measurement of the electron-phonon coupling strength. RAE_import_type : Journal article RAE_uoa_type : Physics
PY - 2007/8/23
Y1 - 2007/8/23
N2 - We describe a peculiar fine structure acquired by the in-plane optical phonon at the point in graphene when it is brought into resonance with one of the inter-Landau-level transitions in this material. The effect is most pronounced when this lattice mode (associated with the G band in graphene Raman spectrum) is in resonance with inter-Landau-level transitions 0+, 1 and -,10, at a magnetic field B030 T. It can be used to measure the strength of the electron-phonon coupling directly, and its filling-factor dependence can be used experimentally to detect circularly polarized lattice vibrations.
AB - We describe a peculiar fine structure acquired by the in-plane optical phonon at the point in graphene when it is brought into resonance with one of the inter-Landau-level transitions in this material. The effect is most pronounced when this lattice mode (associated with the G band in graphene Raman spectrum) is in resonance with inter-Landau-level transitions 0+, 1 and -,10, at a magnetic field B030 T. It can be used to measure the strength of the electron-phonon coupling directly, and its filling-factor dependence can be used experimentally to detect circularly polarized lattice vibrations.
KW - band structure
KW - carbon
KW - electron-phonon interactions
KW - fine structure
KW - Landau levels
KW - lattice energy
KW - magnetophonon effects
KW - Raman spectra
U2 - 10.1103/PhysRevLett.99.087402
DO - 10.1103/PhysRevLett.99.087402
M3 - Journal article
VL - 99
SP - 874021
EP - 874024
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 8
ER -