Supercurrents through SNS Junctions with Thick Cu Layer Doped with Mn
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概要
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The maximum supercurrent I_c passing through the S(Nb)-N(Cu doped with Mn)-S(Nb) junction made of Cu-clad Nb wire has been measured down to 30mK, in order to investigate the relation between the superconducting proximity effect and the Kondo effect. The maximum supercurrent becomes small with an increase in Mn concentration and remarkably with a decrease in electronic mean free path in Cu. The electronic mean free path dependence of I_c may be explained qualitatively in consideration of the spin flip scattering and the RKKY interaction of Mn impurities. The Meissner effect induced by the proximity effect in Cu-clad Nb wire can be understood through the behavior of the coherence length ζ_N in Cu which is derived from I_c.
- 社団法人日本物理学会の論文
- 1994-09-15
著者
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SUMIYAMA Akihiko
Graduate School of Material Science, University of Hyogo
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ODA Yasukage
Faculty of Engineering Science,Osaka University
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Oda Yasukage
Department Of Meteral Science Himeji Institute Of Technology
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Oda Yasukage
Faculty Of Engineering Science Osaka University
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SUMIYAMA Akihiko
Faculty of Science, University of Hyogo
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Nakagawa Masahito
Faculty of Science, Himeji Institute of Technology
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Sumiyama Akihiko
Graduate School Of Material Science University Of Hyogo
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Sumiyama Akihiko
Department Of Meteral Science Himeji Institute Of Technology
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Sumiyama A
Graduate School Of Material Science University Of Hyogo
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