Conductance spectroscopy of spin-triplet superconductors

被引：72

作者：

Asano, Yasuhiro ^{[1
]}

Tanaka, Yukio

Golubov, Alexander A.

Kashiwaya, Satoshi

机构：

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

[2] Nagoya Univ, CREST JST, Nagoya, Aichi 4648603, Japan

[3] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

[4] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands

[5] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.99.067005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a novel experiment to identify the symmetry of superconductivity on the basis of theoretical results for differential conductance of a normal metal connected to a superconductor. The proximity effect from the superconductor modifies the conductance of the remote current depending remarkably on the pairing symmetry: spin singlet or spin triplet. The clear-cut difference in the conductance is explained by symmetry of Cooper pairs in a normal metal with respect to frequency. In the spin-triplet case, the anomalous transport is realized due to an odd-frequency symmetry of Cooper pairs.

引用

页数：4

共 26 条

[1] Anomalous Josephson effect in p-wave dirty junctions [J].

Asano, Y ;

Tanaka, Y ;

Kashiwaya, S .

PHYSICAL REVIEW LETTERS, 2006, 96 (09)

[2] Unconventional superconductivity and Josephson effect in superconductor/dirty normal metal/superconductor junctions [J].

Asano, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2002, 71 (03) :905-909

[3] Disappearance of ensemble-averaged Josephson current in dirty superconductor-normal-superconductor junctions of d-wave superconductors - art. no. 014511 [J].

Asano, Y .

PHYSICAL REVIEW B, 2001, 64 (01)

[4] Josephson effect due to odd-frequency pairs in diffusive half metals [J].

Asano, Yasuhiro ;

Tanaka, Yukio ;

Golubov, Alexander A. .

PHYSICAL REVIEW LETTERS, 2007, 98 (10)

[5] Quasiclassical Green's function approach to mesoscopic superconductivity [J].

Belzig, W ;

Wilhelm, FK ;

Bruder, C ;

Schön, G ;

Zaikin, AD .

SUPERLATTICES AND MICROSTRUCTURES, 1999, 25 (5-6) :1251-1288

[6] Odd triplet superconductivity and related phenomena in superconductor-ferromagnet structures [J].

Bergeret, FS ;

Volkov, AF ;

Efetov, KB .

REVIEWS OF MODERN PHYSICS, 2005, 77 (04) :1321-1373

[7] Nonhomogeneous magnetization and superconductivity in superconductor/ferromagnet structures [J].

Bergeret, FS ;

Volkov, AF ;

Efetov, KB .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 367 (1-4) :107-116

[8] Long-range proximity effects in superconductor-ferromagnet structures [J].

Bergeret, FS ;

Volkov, AF ;

Efetov, KB .

PHYSICAL REVIEW LETTERS, 2001, 86 (18) :4096-4099

[9] MIDGAP SURFACE-STATES AS A NOVEL SIGNATURE FOR D(X(A)(2)-X(B)(2))-WAVE SUPERCONDUCTIVITY [J].

HU, CR .

PHYSICAL REVIEW LETTERS, 1994, 72 (10) :1526-1529

[10] OBSERVATION OF PAIR CURRENTS IN SUPERCONDUCTOR-SEMICONDUCTOR CONTACTS [J].

KASTALSKY, A ;

KLEINSASSER, AW ;

GREENE, LH ;

BHAT, R ;

MILLIKEN, FP ;

HARBISON, JP .

PHYSICAL REVIEW LETTERS, 1991, 67 (21) :3026-3029

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