Diamagnetism of Confined Dirac Fermions in Disordered Graphene
arXiv:1105.3277 · doi:10.1088/1751-8113/44/27/275001
Abstract
The diamagnetism of confined Dirac fermions submitted to a uniform magnetic field in disordered graphene is investigated. The solutions of the energy spectrum are used to discuss the orbital magnetism from a statistical mechanical point of view. More precisely, by the technique of Green functions the self-energy for short and long-ranged disorders is obtained. This allows us to determine the susceptibility for short and long-ranged disorders together with confinement. We compare our results with already published work and point out the relevance of these findings to a systematic formulation of the diamagnetism in a confining potential.
21 pages. Version to appear in JPA
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