Unconventional superconductivity and Josephson effect in superconductor/dirty normal metal/superconductor junctions

被引：44

作者：

Asano, Y ^{[1
]}

机构：

[1] Hokkaido Univ, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2002年 / 71卷 / 03期

关键词：

unconventional superconductor; Andreev reflection; Josephson effect; zero-energy states;

D O I：

10.1143/JPSJ.71.905

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A relation between amplitudes of Josephson current and nodes in excitation-gap of unconventional superconductors is studied in superconductor/dirty normal metal/superconductor junctions. It is found that ensemble average of the Josephson current vanishes when the junction interface is perpendicular to a plane which includes line- or point-zeros of the excitation-gap. A zero-energy state formed at the junction interface is a character of unconventional superconductor junctions and causes large sample-to-sample fluctuations in the Josephson current in low temperatures. The disappearance of the ensemble-averaged Josephson current and the large fluctuations occur at the same time when the Cooper pairs have d- or f-wave pairing symmetries.

引用

页码：905 / 909

页数：5

共 50 条

[21] Influence of the impurity scattering on charge transport in unconventional superconductor junctions [J].

Lu, Bo ;

Burset, Pablo ;

Tanuma, Yasunari ;

Golubov, Alexander A. ;

Asano, Yasuhiro ;

Tanaka, Yukio .

PHYSICAL REVIEW B, 2016, 94 (01)

[22] Effect of Multiple Reflections in a Multilayer of a Normal Metal and a Superconductor [J].

Choi, C. H. .

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2008, 53 (04) :2045-2051

[23] Temperature-induced 0-π coexistence in clean superconductor-ferromagnet-superconductor Josephson junctions [J].

Zikic, R. ;

Dobrosavljevic-Grujic, L. ;

Vujicic, B. .

PHYSICAL REVIEW B, 2009, 79 (05)

[24] Symmetry of pair potential and Josephson effect in dirty SNS junctions [J].

Asano, Y .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 367 (1-4) :92-98

[25] Influence of Rashba spin-orbit coupling on Josephson effect in triplet superconductor/two-dimensional semiconductor/triplet superconductor junctions [J].

Du, Bin-Hao ;

Chen, Man-Ni ;

Hu, Liang-Bin .

CHINESE PHYSICS B, 2022, 31 (07)

[26] Josephson effect of S(Nb)-N(Cu)-S′ (heavy-fermion, superconductor) junctions [J].

Sumiyama, A ;

Shibata, S ;

Oda, Y ;

Kimura, N ;

Yamamoto, E ;

Haga, Y ;

Onuki, Y .

PHYSICA B, 2000, 281 :1010-1011

[27] Phase diagram of geometric d-wave superconductor Josephson junctions [J].

Gumann, A. ;

Schopohl, N. .

PHYSICAL REVIEW B, 2009, 79 (14)

[28] Quantum transport in normal-metal/ferromagnet/spin-triplet superconductor junctions [J].

Cheng, Qiang ;

Jin, Biao .

PHYSICA B-CONDENSED MATTER, 2013, 426 :40-44

[29] Theory of tunneling spectroscopy of normal metal/ferromagnet/spin-triplet superconductor junctions [J].

Olthof, L. A. B. Olde ;

Suzuki, S-, I ;

Golubov, A. A. ;

Kunieda, M. ;

Yonezawa, S. ;

Maeno, Y. ;

Tanaka, Y. .

PHYSICAL REVIEW B, 2018, 98 (01)

[30] Theory of tunneling conductance in normal metal/triplet superconductor junctions without inversion symmetry [J].

Yokoyama, T. ;

Tanaka, Y. ;

Inoue, J. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) :660-662

← 1 2 3 4 5 →