Josephson Effect between Noncentrosymmetric LaPt3Si and a Conventional Superconductor
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概要
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The Josephson effect between LaPt3Si and Al has been investigated for junctions on the (100) and (001) faces of LaPt3Si single crystals and a polycrystal. In the magnetic-field dependence of the Josephson critical current, the anomaly previously reported for CePt3Si appeared; an oscillating pattern without a dominant maximum peak at zero field was observed for the junction on the (001) face. This cannot be interpreted as the Josephson effect between conventional $s$-wave superconductors and suggests that the origin of the anomaly lies in the noncentrosymmetric crystal structure.
- 2010-12-15
著者
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SETTAI Rikio
Graduate School of Science, Osaka University
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Oda Yasukage
Graduate School Of Material Science University Of Hyogo
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Onuki Yoshichika
Graduate School Of Science Osaka University
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Sumiyama Akihiko
Graduate School Of Material Science University Of Hyogo
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Motoyama Gaku
Graduate School Of Material Science University Of Hyogo
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Yasuda Takashi
Graduate School Of Engineering Gifu University
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Aoki Yoshihiro
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
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Shiotsuki Masahiro
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
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Yamaguchi Akira
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
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Settai Rikio
Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Yasuda Takashi
Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka, Fukuoka 820-8502, Japan
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