Integer Quantum Hall Effect in Graphite
arXiv:cond-mat/0603155 · doi:10.1016/j.ssc.2006.02.020
Abstract
We present Hall effect measurements on highly oriented pyrolytic graphite that indicate the occurrence of the integer quantum-Hall-effect. The evidence is given by the observation of regular plateau-like structures in the field dependence of the transverse conductivity obtained in van der Pauw configuration. Measurements with the Corbino-disk configuration support this result and indicate that the quasi-linear and non-saturating longitudinal magnetoresistance in graphite is governed by the Hall effect in agreement with a recent theoretical model for disordered semiconductors.
3 figures, to be published in Solid State Communication (2006)