期刊
PHYSICAL REVIEW B
卷 80, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.241404
关键词
graphene; Landau levels; Raman spectra; semiconductor materials
资金
- EPSRC-GB [EP/G014787, EP/G035954, EP/G041954]
- EPSRC [EP/G035954/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G035954/1] Funding Source: researchfish
Inelastic light scattering from Dirac-type electrons in graphene is shown to be dominated by the generation of the interband electronic modes which are odd in terms of time-inversion symmetry and belong to the irreducible representation A(2) of the point group C-6v of the honeycomb crystal. At high magnetic fields, these electron-hole excitations appear as peculiar n(-)-> n(+) inter-Landau-level modes with energies omega(n)=22nhv/lambda(B) and characteristically crossed polarization of in/out photons.
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