Landau Levels and Cyclotron Resonance in Graphite

Abstract

Landau levels and their eigenfunctions are calculated for the band model of Slonczewsky and Weiss by using Kohn-Luttinger's method. Owing to the interband effect, the energy levels do not agree with semiclassical energy levels. The theory of cyclotron resonance absorption is developed on the basis of obtained energy levels and eigenfunctions. Taking into account the incompleteness of circular polarization of microwave in the experiment done by Galt, Yager and Dail, an alternative interpretation of cyclotron resonance experiment is presented. It is shown that the values of k z which give absorption peaks are k z =0 for holes and E 2 = E 3 for electrons, instead of Nozières's interpretation. The values γ 0 2 /γ 1 =31 eV and γ 0 2 / E f =317 eV are obtained for band parameters to fit the experimental data. The possibility of determining γ 1 directly from magneto-optical effect is also discussed.