Quantum interference phenomena between impurity states in d-wave superconductors

被引：5

作者：

Michelucci, U ^{[1
]}

Venturini, F

Kampf, AP

机构：

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

[2] Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2002年 / 63卷 / 12期

关键词：

superconductors; electronic structure;

D O I：

10.1016/S0022-3697(02)00238-X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigate the mutual influence of impurities in two-dimensional d-wave superconductors involving self-consistent solutions of the Bogoliubov-de Gennes equations. The local order parameter suppression, the local density of states as well as the interference of impurity-induced structures are analyzed. We employ an impurity position averaging scheme for the density of states that does not neglect these interference effects, as the commonly used T-matrix approaches do. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

收藏

页码：2283 / 2286

页数：4

相关论文

共 14 条

[1] Gap inhomogeneities and the density of states in disordered d-wave superconductors [J].

Atkinson, WA ;

Hirschfeld, PJ ;

MacDonald, AH .

PHYSICAL REVIEW LETTERS, 2000, 85 (18) :3922-3925

[2] 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

[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]

de Gennes P. G., 1966, SUPERCONDUCTIVITY ME

[6] Order-parameter holes and theory of microwave conductivity in YBa2CU3O7-δ [J].

Hettler, MH ;

Hirschfeld, PJ .

PHYSICAL REVIEW B, 2000, 61 (17) :11313-11316

[7] Atomic-scale quasi-particle scattering resonances in Bi2Sr2CaCu2O8+δ [J].

Hudson, EW ;

Pan, SH ;

Gupta, AK ;

Ng, KW ;

Davis, JC .

SCIENCE, 1999, 285 (5424) :88-91

[8] Interplay of magnetism and high-Tc superconductivity at individual Ni impurity atoms in Bi2Sr2CaCu2O8+δ [J].

Hudson, EW ;

Lang, KM ;

Madhavan, V ;

Pan, SH ;

Eisaki, H ;

Uchida, S ;

Davis, JC .

NATURE, 2001, 411 (6840) :920-924

[9]

Joynt R, 1997, J LOW TEMP PHYS, V109, P811, DOI 10.1007/BF02435491

[10] Imaging the effects of individual zinc impurity atoms on superconductivity in Bi2Sr2CaCu2O8+δ [J].

Pan, SH ;

Hudson, EW ;

Lang, KM ;

Eisaki, H ;

Uchida, S ;

Davis, JC .

NATURE, 2000, 403 (6771) :746-750