A theoretical study of tunneling conductance in PrOs4Sb12 superconducting junctions

被引：30

作者：

Asano, Y ^{[1
]}

Tanaka, Y

Matsuda, Y

Kashiwaya, S

机构：

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

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

[3] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

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

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.68.184506

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tunnel conductance in normal-metal/insulator/ProS(4)Sb(12) junctions is theoretically studied, where skutterudite ProS(4)Sb(12) is considered to be an unconventional superconductor. The conductance is calculated for several pair potentials which have been proposed in recent work. The results show that the conductance is sensitive to the relation between the direction of electric currents and the position of point nodes. The conductance spectra often deviate from the shape of bulk density of states. The sub gap spectra have peak structures in the case of the spin-triplet pair potentials. The results indicate that the tunnel conductance is a useful tool to obtain information of the pairing symmetry.

引用

页数：8

共 104 条

[91] Theoretical study of quasiparticle states near the surface of a quasi-one-dimensional organic superconductor (TMTSF)2PF6 -: art. no. 214510 [J].

Tanuma, Y ;

Kuroki, K ;

Tanaka, Y ;

Kashiwaya, S .

PHYSICAL REVIEW B, 2001, 64 (21)

[92] Low-temperature specific heat of the heavy-fermion superconductor PrOs4Sb12 -: art. no. 057001 [J].

Vollmer, R ;

Faisst, A ;

Pfleiderer, C ;

von Löhneysen, H ;

Bauer, ED ;

Ho, PC ;

Zapf, V ;

Maple, MB .

PHYSICAL REVIEW LETTERS, 2003, 90 (05) :4

[93] Spectroscopic evidence for unconventional superconductivity in UBe13 [J].

Wälti, C ;

Ott, HR ;

Fisk, Z ;

Smith, JL .

PHYSICAL REVIEW LETTERS, 2000, 84 (24) :5616-5619

[94] Directional tunneling and andreev reflection on YBa2Cu3O7-δ single crystals:: Predominance of d-wave pairing symmetry verified with the generalized Blonder, Tinkham, and Klapwijk theory [J].

Wei, JYT ;

Yeh, NC ;

Garrigus, DF ;

Strasik, M .

PHYSICAL REVIEW LETTERS, 1998, 81 (12) :2542-2545

[95]

Wu ST, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.012512

[96] Rough surface effects on d-wave superconductors [J].

Yamada, K ;

Nagato, Y ;

Higashitani, S ;

Nagai, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (06) :1540-1543

[97] Theory of tunneling spectroscopy in superconducting Sr2RuO4 [J].

Yamashiro, M ;

Tanaka, Y ;

Kashiwaya, S .

PHYSICAL REVIEW B, 1997, 56 (13) :7847-7850

[98] Theory of tunneling conductance for normal metal/insulator/triplet superconductor junction [J].

Yamashiro, M ;

Tanaka, Y ;

Tanuma, Y ;

Kashiwaya, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (09) :3224-3233

[99] Theory of the dc Josephson effect in s-wave/p-wave/s-wave superconductor junction [J].

Yamashiro, M ;

Tanaka, Y ;

Kashiwaya, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (10) :3364-3367

[100] Tunneling conductance and spatial dependences of pair potentials in normal metal-triplet superconductor junctions [J].

Yamashiro, M ;

Tanaka, Y ;

Yoshida, N ;

Kashiwaya, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1999, 68 (06) :2019-2025

← 2 3 4 5 6 7 8 9 10 11 →