Impurity scattering and localization in d-wave superconductors

被引：91

作者：

Franz, M

Kallin, C

Berlinsky, AJ

机构：

[1] MCMASTER UNIV, DEPT PHYS & ASTRON, HAMILTON, ON L8S 4M1, CANADA

[2] MCMASTER UNIV, BROCKHOUSE INST MAT RES, HAMILTON, ON L8S 4M1, CANADA

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.54.R6897

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Strong evidence is presented for the localization of low-energy quasiparticle states ih disordered d-wave superconductors. Within the framework of the Bogoliubov-de Gennes (BdG) theory:applied to the extended Hubbard model with a finite concentration pf nonmagnetic impurities, we carry out a fully self-consistent numerical diagonalization of the BdG equations on finite clusters containing up to 50x50 sites. Localized states are identified by probing their sensitivity to the boundary conditions and by analyzing the finite-size dependence of inverse participation ratios.

引用

收藏

页码：R6897 / R6900

页数：4

相关论文

共 20 条

[1] KNIGHT SHIFT IN SUPERCONDUCTORS [J].

ANDERSON, PW .

PHYSICAL REVIEW LETTERS, 1959, 3 (07) :325-326

[2] INTERPRETATION OF THE TEMPERATURE-DEPENDENCE OF THE ELECTROMAGNETIC PENETRATION DEPTH IN YBA2CU3O7-DELTA [J].

ANNETT, J ;

GOLDENFELD, N ;

RENN, SR .

PHYSICAL REVIEW B, 1991, 43 (04) :2778-2782

[3] IMPURITY-INDUCED VIRTUAL BOUND-STATES IN D-WAVE SUPERCONDUCTORS [J].

BALATSKY, AV ;

SALKOLA, MI ;

ROSENGREN, A .

PHYSICAL REVIEW B, 1995, 51 (21) :15547-15551

[4] Impurity states and the absence of quasiparticle localization in disordered d-wave superconductors [J].

Balatsky, AV ;

Salkola, MI .

PHYSICAL REVIEW LETTERS, 1996, 76 (13) :2386-2389

[5] DISORDER AND SUPERCONDUCTING-STATE CONDUCTIVITY OF SINGLE-CRYSTALS OF YBA2CU3O6.95 [J].

BASOV, DN ;

PUCHKOV, AV ;

HUGHES, RA ;

STRACH, T ;

PRESTON, J ;

TIMUSK, T ;

BONN, DA ;

LIANG, R ;

HARDY, WN .

PHYSICAL REVIEW B, 1994, 49 (17) :12165-12169

[6] GINZBURG-LANDAU THEORY OF VORTICES IN D-WAVE SUPERCONDUCTORS [J].

BERLINSKY, AJ ;

FETTER, AL ;

FRANZ, M ;

KALLIN, C ;

SOININEN, PI .

PHYSICAL REVIEW LETTERS, 1995, 75 (11) :2200-2203

[7]

de Gennes P. G., 1989, SUPERCONDUCTIVITY ME

[8] RENORMALIZATION OF THE MEAN-FIELD SUPERCONDUCTING PENETRATION DEPTH IN EPITAXIAL YBA2CU3O7 FILMS [J].

FIORY, AT ;

HEBARD, AF ;

MANKIEWICH, PM ;

HOWARD, RE .

PHYSICAL REVIEW LETTERS, 1988, 61 (12) :1419-1422

[9]

FRANZ M, UNPUB

[10] PRECISION-MEASUREMENTS OF THE TEMPERATURE-DEPENDENCE OF LAMBDA IN YBA2CU3O6.95 - STRONG EVIDENCE FOR NODES IN THE GAP FUNCTION [J].

HARDY, WN ;

BONN, DA ;

MORGAN, DC ;

LIANG, RX ;

ZHANG, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (25) :3999-4002