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	Josephson current in ferromagnet-superconductor tunnel junctions
	Li, X. W. ; Zheng, Z. M. ; Xing, D. Y. ; Sun, G. Y. ; Dong, Z. C. ; Sun GY(孙国亚)
	2002
关键词	ANDREEV REFLECTION STATES TRANSITION
英文摘要	We present a phase diagram of a ferromagnetic superconductor (FS) in T-h plane with T the temperature and h the effective exchange field, in which a first-order phase-transition line separates the superconducting region from the normal-state region. The Josephson currents in an FS/I/FS junction (with I denoting thin insulating layers) are calculated as a function of the temperature, exchange field, and insulating barrier strength. It is found that the presence of h always suppresses the Josephson critical current at higher temperatures, or for weak barrier strength, or for a parallel configuration of the magnetic moments of two FS electrodes. The only exception that the critical current increases with h occurs if all three conditions are satisfied: at low temperatures, for strong barrier strength, and in an antiparallel configuration.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/68915]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Li, X. W.,Zheng, Z. M.,Xing, D. Y.,et al. Josephson current in ferromagnet-superconductor tunnel junctions[J],2002.
APA	Li, X. W.,Zheng, Z. M.,Xing, D. Y.,Sun, G. Y.,Dong, Z. C.,&孙国亚.(2002).Josephson current in ferromagnet-superconductor tunnel junctions..
MLA	Li, X. W.,et al."Josephson current in ferromagnet-superconductor tunnel junctions".(2002).

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