Details of disorder matter in 2D d-wave superconductors

被引：65

作者：

Atkinson, WA

Hirschfeld, PJ

MacDonald, AH

Ziegler, K

机构：

[1] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

[2] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[3] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.85.3926

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Within numerically exact solutions of the Bogoliubov-de Gennes equations, we demonstrate that discrepancies between predicted low-energy quasiparticle properties in disordered 2D d-wave superconductors occur because of the unanticipated importance of disorder model details and normal state particle-hole symmetry. For the realistic case, which is best described by a binary alloy model without particle-hole symmetry, we predict density-of-stats suppression below an energy scale which appears to be correlated with the corresponding single impurity resonance.

引用

收藏

页码：3926 / 3929

页数：4

相关论文

共 32 条

[1] Details of disorder matter in 2D d-wave superconductors [J].

Atkinson, WA ;

Hirschfeld, PJ ;

MacDonald, AH ;

Ziegler, K .

PHYSICAL REVIEW LETTERS, 2000, 85 (18) :3926-3929

[2]

ATKINSON WA, CONDMAT9912158

[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]

BOCQUET M, CONDMAT9910480

[6] Depression of quasiparticle density of states at zero energy in La1.9Sr0.1Cu1-xZnxO4 [J].

Chang, CF ;

Lin, JY ;

Yang, HD .

PHYSICAL REVIEW LETTERS, 2000, 84 (24) :5612-5615

[7] Effect of nonmagnetic impurities on the gap of a d(x)2-(y)2 superconductor as seen by angle-resolved photoemission [J].

Fehrenbacher, R .

PHYSICAL REVIEW B, 1996, 54 (09) :6632-6639

[8] GAP RENORMALIZATION IN DIRTY ANISOTROPIC SUPERCONDUCTORS - IMPLICATIONS FOR THE ORDER-PARAMETER OF THE CUPRATES [J].

FEHRENBACHER, R ;

NORMAN, MR .

PHYSICAL REVIEW B, 1994, 50 (05) :3495-3498

[9] Nonmagnetic impurity scattering in a d(x(2)-y(2)) superconductor near a Van Hove point: Zn versus Ni in the cuprates [J].

Fehrenbacher, R .

PHYSICAL REVIEW LETTERS, 1996, 77 (09) :1849-1852

[10] Critical temperature and superfluid density suppression in disordered high-T-c cuprate superconductors [J].

Franz, M ;

Kallin, C ;

Berlinsky, AJ ;

Salkola, MI .

PHYSICAL REVIEW B, 1997, 56 (13) :7882-7885

← 1 2 3 4 →