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.
@article{arxiv.cond-mat/0603155,
title = {Integer Quantum Hall Effect in Graphite},
author = {H. Kempa and P. Esquinazi and Y. Kopelevich},
journal= {arXiv preprint arXiv:cond-mat/0603155},
year = {2009}
}
Comments
3 figures, to be published in Solid State Communication (2006)