NMR Study of the Proximity Effect in Nb-Cu Multilayers
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概要
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A series of measurements ort the nuclear spin-lattice relaxation rate, T. ', of "Cu insuperconducting multilayer Nb-Cu has been performed over a temperature rangefrom 4.2 K down to 0.3 K, using the field cycling method. T. ' decreases rapidly afteran initial increment just below T.. At low temperatures, hc>waver, the rate of thedecrease slows down, and T. ' decreases in proportion to temperature. It has beenconcluded that such behavior of T. ' originates from a distribution of the energy gapof the Cooper pairs in Cu. The electrons which are propagated nearly normal to theS-N interface have a finite energy gap predicted by McMillan, while the electrons pro-pagated nearly parallel to the interface are gapless and behave like normal electrons.[superconducting proximity effect, multilayers, 'Nb-Cu, "Cu NMR, spin-lattice ]j relaxation rate, energy gapl
- 社団法人日本物理学会の論文
- 1989-01-15
著者
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ODA Yasukage
Graduate School of Material Science, University of Hyogo
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ZHENG Guo-qing
Department of Physics, Okayama University
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KOHORI Yoh
Department of Physics, Chiba University
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Oda Yasukage
Department of Material Science, Faculty of Science, Himeji Institute of Technology
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Asayama Kunisuke
Department of Material Physics, Faculty of Engineering Science, Osaka University
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Kohori Yoh
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Yoh Kohori
Department Of Material Science Faculty Of Science Himeji Institute Of Technology
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Asayama Kunisuke
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Oda Yasukage
Graduate School Of Material Science University Of Hyogo
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Zheng G‐q
Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Kohori Y
Chiba Univ. Chiba
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AOKI Ryozo
Department of Physics,Faculty of Science,Kyushu University
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Aoki R
Department Of Electrical Engineering Faculty Of Engineering Osaka University
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Aoki R
Osaka Univ. Suita
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Aoki Ryozo
Osaka University Department Of Electrical Engineering
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Aoki Ryozo
Department Of Electrical Engineering Osaka University
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Karaki Y
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Fujita H
Department Of Electronic Engineering Faculty Of Engineering Kyushu Institute Of Technology
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OBI Yoshihisa
Research Institute for Iron,Steel and other Metals.Tohoku University
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FUJIMORI Hiroyasu
Research Institute for Iron,Steel and other Metals.Tohoku University
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Zheng Guo-qing
Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Obi Yoshihisa
Institute Of Material Research Tohoku University
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Fujita H
Kyushu University
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Oda Yasukage
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Oda Y
Graduate School Of Material Science University Of Hyogo
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Oda Y
Department Of Material Science Faculty Of Science Himeji Institute Of Technology
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