Localization and circulating currents in curved graphene devices

被引：30

作者：

Wakker, G. M. M. ^{[1
]}

Tiwari, Rakesh P. ^{[1
]}

Blaauboer, M. ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, Dept Quantum Nanosci, NL-2628 CJ Delft, Netherlands

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 19期

关键词：

SPINS;

D O I：

10.1103/PhysRevB.84.195427

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the energy spectrum and eigenstates of a graphene sheet that contains a circular deformation. Using time-independent perturbation theory with the ratio of the height and width of the deformation as the small parameter, we find that due to the curvature the wave functions for the various states acquire unique angular asymmetry. We demonstrate that the pseudomagnetic fields induced by the curvature result in circulating probability currents.

引用

页数：6

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