Persistent current in one-dimensional mesoscopic ring with a stub

被引:11
作者
Wang, L. G. [1 ]
机构
[1] Shenyang Univ, Coll Sci, Shenyang 110044, Peoples R China
关键词
Persistent current; Quantum waveguide theory; Stub; LOOP; SINGLE;
D O I
10.1016/j.physb.2008.10.040
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The transport property of electron in a quantum ring-stub system is investigated through quantum waveguide theory. The persistent current is produced and controlled by tuning the length of the stub even in the absence of the magnetic field, and it can be observed if one tuning the Fermi energy near the antiresonance or the Fano resonance of the transport current. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:143 / 145
页数:3
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