We measure the far-infrared magneto-optical Kerr rotation and reflectivity spectra in graphite and achieve a highly accurate unified microscopic description of all data in a broad range of magnetic fields by taking rigorously the c-axis band dispersion and the trigonal warping into account. We find that the second- and the forth-order cyclotron harmonics are optically almost as strong as the fundamental resonance even at high fields. They must play, therefore, a major role in magneto-optical and magneto-plasmonic applications based on Bernal stacked graphite and multilayer graphene.
@article{arxiv.1110.2754,
title = {Decrypting the cyclotron effect in graphite using Kerr rotation spectroscopy},
author = {Julien Levallois and M. K. Tran and Alexey B. Kuzmenko},
journal= {arXiv preprint arXiv:1110.2754},
year = {2012}
}