Persistent current in a superconductor/quantum-dot ring/superconductor system

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	Persistent current in a superconductor/quantum-dot ring/superconductor system
	G. Y. Yi; H. N. Wu; W. J. Gong; G. Z. Wei
	2010
发表期刊	Physics Letters A
ISSN	0375-9601
卷号	374 期号:36 页码:3768-3776
摘要	By means of the non-equilibrium Green's function technique, the inter-dot and Josephson currents in a superconductor/quantum-dot ring/superconductor (S/QDR/S) system are theoretically investigated. We found that a persistent current can coexist with the Josephson current in this hybrid QDR system when the inter-dot currents are all flowing in the clockwise (or anticlockwise) direction. The magnitude and direction of the persistent current can be controlled experimentally by the adjustment of some structure parameters, such as the quantum dot (QD) levels, the phase difference of the two external superconducting leads and the magnetic flux phase factor. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[yi, guangyu; wu, haina; gong, weijiang; wei, guozhu] northeastern univ, coll sci, shenyang 110006, peoples r china. [gong, weijiang; wei, guozhu] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wei, gz (reprint author), northeastern univ, coll sci, shenyang 110006, peoples r china;guozhuwei02@sina.com
关键词	Quantum-dot Ring Josephson Current Persistent Current Superconducting Quantum Point Aharonov-bohm Interferometer Pi-junction Transition Dc Josephson Current Electronic Transport Supercurrent Phase States Configuration Leads
URL	查看原文
WOS记录号	WOS:000281272900013
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31651
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Y. Yi,H. N. Wu,W. J. Gong,et al. Persistent current in a superconductor/quantum-dot ring/superconductor system[J]. Physics Letters A,2010,374(36):3768-3776.
APA	G. Y. Yi,H. N. Wu,W. J. Gong,&G. Z. Wei.(2010).Persistent current in a superconductor/quantum-dot ring/superconductor system.Physics Letters A,374(36),3768-3776.
MLA	G. Y. Yi,et al."Persistent current in a superconductor/quantum-dot ring/superconductor system".Physics Letters A 374.36(2010):3768-3776.