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Hayashi, Nobuhiko; Iniotakis, C.*; Machida, Masahiko; Sigrist, M.*
Journal of Physics and Chemistry of Solids, 69(12), p.3225 - 3227, 2008/12
Times Cited Count：2 Percentile：13.11(Chemistry, Multidisciplinary)We analyze the Josephson effect between a conventional superconductor (SC) and a non-centrosymmetric SC with the purpose to identify qualitative features originating form the pairing symmetry of the latter. As a concrete example, we consider the non-centrosymmetric SC CePt
Si where Rashba spin-orbit coupling plays a crucial role and affects the Josephson pair tunneling. We find that the Josephson coupling is composed of two parts, a spin-singlet-like component and a spin-triplet-like one. The triplet-like component can lead to a Josephson coupling that is shifted by 
relative to the singlet-like coupling. This has important implications on the interference effects and may explain some recent experimental results for the Al/CePtSi junction.
Hayashi, Nobuhiko; Iniotakis, C.*; Machida, Masahiko; Sigrist, M.*
Physica C, 468(7-10), p.844 - 847, 2008/04
Times Cited Count：13 Percentile：50.66(Physics, Applied)We study the Josephson effect between a conventional 
-wave superconductor and a non-centrosymmetric superconductor with Rashba spin-orbit coupling. Rashba spin-orbit coupling affects the Josephson pair tunneling in a characteristic way. The Josephson coupling can be decomposed into two parts, a "spin-singlet-like" and a "spin-triplet-like" component. The latter component can lead to shift of the Josephson phase by 
relative to the former coupling. This has important implications on interference effects and may explain some recent experimental results for the Al/CePtSi junction.
Iniotakis, C.*; Hayashi, Nobuhiko; Sawa, Yasuo*; Yokoyama, Takehito*; May, U.*; Tanaka, Yukio*; Sigrist, M.*
Physical Review B, 76(1), p.012501_1 - 012501_4, 2007/07
Times Cited Count：87 Percentile：92.35(Materials Science, Multidisciplinary)The tunneling characteristics of planar junctions between a normal metal and a noncentrosymmetric superconductor such as CePtSi are examined. It is shown that the superconducting phase with mixed parity can give rise to characteristic zero-bias anomalies in certain junction directions. Andreev bound states at the interface are the origin of these zero-bias anomalies. The tunneling characteristics for different directions allow us to test the structure of the parity-mixed pairing state.
Hayashi, Nobuhiko; Iniotakis, C.*; Sigrist, M.*
no journal, ,
We analyze the Josephson current between a conventional superconductor (SC) and a noncentrosymmetric SC with the purpose to identify qualitative features originating form the pairing symmetry of the latter. As a concrete example, we consider the non-centrosymmetric SC CePtSi where Rashba spin-orbit coupling plays a crucial role and affects the Josephson pair tunneling. We find that the Josephson coupling is composed of two parts, a spin-singlet-like component and a spintriplet-like one. The triplet-like component can lead to a Josephson coupling that is shifted by relative to the singlet-like coupling. This has important implications on the interference effects and may explain some recent experimental results for the Al/CePtSi junction.
