Magnetoabsorption study of Landau levels in graphite
K.-C. ChuangClarendon Laboratory, Physics Department, Oxford University, Parks Road, Oxford OX1 3PU, United KingdomA. M. R. BakerClarendon Laboratory, Physics Department, Oxford University, Parks Road, Oxford OX1 3PU, United KingdomR. J. NicholasClarendon Laboratory, Physics Department, Oxford University, Parks Road, Oxford OX1 3PU, United Kingdom
2009en
ABI
Annotatsiya
We report far-infrared magnetoabsorption measurements of thin graphite samples exfoliated from highly ordered pyrolytic graphite showing transitions originating from the $K$ and the $H$ points. For the $K$ point, both cyclotron resonance and interband transitions are measured which are not described well by the currently accepted values of the parameters in the Slonczewski-Weiss-McClure tight-binding model. We demonstrate that the observed data can be better described using an effective bilayer graphite model which has been modified to include an electron-hole asymmetry.
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