Josephson Effect in Quasi One-dimensional Unconventional Superconductors(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
- 論文の詳細を見る
Josephson effect in junctions of quasi one-dimensional superconductors at the quarter-filling electron density is discussed by using the tight-binding model on a two-dimensional square lattice. To consider the triangular lattice structures in real materials such as (TMTSF)_2X (X = PF_6, CIO_4, etc), the asymmetric hopping integral is introduced among second nearest lattice sites. A combination of these characters in superconductors (quasi one-dimensionality, quarter-filling electron density and weak triangular lattice structures) seriously affects the formation of a zero-energy state at a junction interface. As a consequence, calculated results of the Josephson current show anomalous dependences on temperatures.
- 社団法人日本物理学会の論文
- 2004-07-15
著者
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KUROKI Kazuhiko
Department of Applied Physics and Chemistry, The University of Electro-Communications
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Asano Y
Hokkaido Univ. Sapporo Jpn
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Asano Yuzo
Institute Of Applied Physics University Of Tsukuba
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ASANO Yasuhiro
Department of Applied Physics,Nagoya University
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ASANO Yoshihiro
NTT Electrical communications Laboratories
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Kuroki K
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Kuroki K
Sanyo Electric Co. Osaka Jpn
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Kuroki Kazuhiko
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Kuroki Kazuhiko
New Materials Research Center Sanyo Electric Co.
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Kuroki Kazuhiko
New Materials Research Center Sanyo Electric Co. Ltd.
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Asano Y
Fukui Univ. Technol. Fukui
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Asano Yasuhiro
Department Of Applied Physics And Chemistry Fukui University Of Technology
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TANAKA Yukio
Department of Applied Physics, Nagoya University
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Asano T
Hokkaido Univ. Sapporo
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TANUMA Yasunari
Institute of Physics, Kanagawa University
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TSUCHIURA Hiroki
SISSA
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Tsuchiura H
International School For Advanced Studies (sissa)
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Tanaka Yukio
Department Of Applied Physics Nagoya University
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Hirai Takashi
Department Of Applied Physics Nagoya University
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