Diamagnetic Response of Disordered Graphene to Nonuniform Magnetic Field
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概要
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The diamagnetic susceptibility is calculated in disordered monolayer graphene in spatially varying magnetic field within a self-consistent Born approximation. The universality that the susceptibility is a function of q/2k_{\text{F}} in ideal graphene is nearly valid in the weak-disorder case except that the susceptibility becomes nonzero even for slowly-varying field. In the case of strong disorder the universal behavior is completely destroyed. The mirror-image-like response to a magnet is still valid at the Dirac point as long as the disorder is sufficiently weak.
- 2011-11-15
著者
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Koshino Mikito
Department Of Physics Tokyo Institute Of Technology
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Ando Tsuneya
Department Of Physics Faculty Of Science University Of Tokyo
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Arimura Yasunori
Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8551, Japan
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