We use polarized magneto-Raman scattering to study purely electronic excitations and the electron-phonon coupling in bulk graphite. At a temperature of 4.2 K and in magnetic fields up to 28 T we observe K-point electronic excitations involving Landau bands with Δ|n|=0 and with Δ|n|=±2 that can be selected by controlling the angular momentum of the excitation laser and of the scattered light. The magnetophonon effect involving the E2g optical phonon and K-point inter-Landau-band electronic excitations with Δ|n|=±1 is revealed and analyzed within a model taking into account the full kz dispersion. These polarization-resolved results are explained in the frame of the Slonczewski-Weiss-McClure model which directly allows the quantification of the electron-hole asymmetry.
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Kossacki et al. (2011) studied this question.