Giant persistent current in an open mesoscopic ring

Shenglan Xiao, Xiangbo Yang (), Lianzhang Cai and Timon Liu

The European Physical Journal B: Condensed Matter and Complex Systems, 2013, vol. 86, issue 3, 1-6

Abstract: In this paper we obtain a giant persistent current (PC) in an open mesoscopic ring. Using eigenfunction method we calculate the PC and get the fitting formulae for the maximum amplitudes of PC. The numerical results show that even in the absence of external magnetic field and impurity, our designed simple mesoscopic system can still generate a huge PC which is more than one order of magnitude larger than those produced by the mesoscopic rings reported previously. It may be useful for the designing of microcircuits with large electric current. Furthermore, we deduce two experimental optimal selectable mesoscopic rings. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Keywords: Mesoscopic and Nanoscale Systems (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1140/epjb/e2012-31019-9

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