无序石墨烯中束缚狄拉克费米子的抗磁性
Diamagnetism of Confined Dirac Fermions in Disordered Graphene
摘要：
研究了无序石墨烯中均匀磁场作用下受限狄拉克费米子的抗磁性。利用能谱的解，从统计力学的观点讨论了轨道磁性。更准确地说，通过格林函数的技术，获得了短距离和长距离无序的自能。这使我们能够确定短期和长期疾病的易感性与限制。我们比较我们的研究结果与已经发表的工作，并指出这些研究结果的相关性，在一个封闭的潜力的抗磁性的系统制定。
英文摘要：
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.
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