Penetration depth in conventional layered superconductors: A proximity-effect model

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	Penetration depth in conventional layered superconductors: A proximity-effect model
	Zhao, SP ; Yang, QS
刊名	PHYSICAL REVIEW B
	1999
卷号	59 期号:22 页码:14630
关键词	MICROWAVE SURFACE IMPEDANCE JOSEPHSON TUNNEL-JUNCTIONS TEMPERATURE-DEPENDENCE MULTILAYERS YBA2CU3O6.95 BILAYERS FIELD
ISSN号	0163-1829
通讯作者	Zhao, SP (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	We propose a theory for thr penetration depth lambda(T) of superconducting bilayers and multilayers, which are composed of two dissimilar superconducting layers S and S' with arbitrary coupling strength, and with the S layer thickness (T-c,T-S > T-c,T-S') less than or comparable to its coherence length. Within the framework of the theory, we discuss the influences of the S' layer parameters, and of the coupling strength between the S' and S layers. We show that their variations lead to a variety of temperature dependences of lambda(T). Many of the basic features observed experimentally in conventional SS' structures have been reproduced. The theory begins with an extension of the proximity-effect model developed by Golubov et al. [Phys. Rev. B 51, 1073 (1995)], which is based on the Usadel equations. It therefore applies to the dirty SS' system, and provides a description of the superconducting properties over the entire temperature range below T-c, the transition temperature of the system. We shall compare our model with a phenomenological model developed within the proximity-effect theory which is applicable near T-c. A brief discussion on the highly anisotropic systems in connection with the intrinsically layered high-T-c superconductors is also presented.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/50650]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhao, SP,Yang, QS. Penetration depth in conventional layered superconductors: A proximity-effect model[J]. PHYSICAL REVIEW B,1999,59(22):14630.
APA	Zhao, SP,&Yang, QS.(1999).Penetration depth in conventional layered superconductors: A proximity-effect model.PHYSICAL REVIEW B,59(22),14630.
MLA	Zhao, SP,et al."Penetration depth in conventional layered superconductors: A proximity-effect model".PHYSICAL REVIEW B 59.22(1999):14630.