Diamagnetism in disordered graphene
Mesoscale and Nanoscale Physics
2009-11-13 v1
Abstract
The orbital magnetism is studied in graphene monolayer within the effective mass approximation. In models of short-range and long-range disorder, the magnetization is calculated with self-consistent Born approximation. In the zero-field limit, the susceptibility becomes highly diamagnetic around zero energy, while it has a long tail proportional to the inverse of the Fermi energy. We demonstrated how the magnetic oscillation vanishes and converges to the susceptibility, on going from a strong-field regime to zero-field. The behavior at zero energy is shown to be highly singular.
Cite
@article{arxiv.0705.2322,
title = {Diamagnetism in disordered graphene},
author = {Mikito Koshino and Tsuneya Ando},
journal= {arXiv preprint arXiv:0705.2322},
year = {2009}
}