Quasiparticle bound states around impurities in dx2-y2-wave superconductors

被引：41

作者：

Haas, S ^{[1
]}

Maki, K ^{[1
]}

机构：

[1] Univ So Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.85.2172

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Zn and Ni impurities in the holt-doped high-temperature superconductors are known to have strong effects on thermodynamic and transport properties. A recent scanning tunneling microscope study of Zn-doped Bi2212 [S. H. Pan ei nl.. Nature (London) 403, 746 (2000)] has provided high-resolution images of the local density of states around nonmagnetic impurities in d(x2-y2)-wave superconductors. These pictures contain detailed information about the spinor wave functions u(r) and nu(r) of bound states with energy E-0 similar to Delta/30, centered at the Zn sites. We show that this type of wave function follows from the solutions of the Bogoliubov-de Gennes equations for d(x2-y2)-wave superconductors.

引用

页码：2172 / 2175

页数：4

共 29 条

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

BALATSKY, AV ;

SALKOLA, MI ;

ROSENGREN, A .

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

[2] INFLUENCE OF GAP EXTREMA ON THE TUNNELING CONDUCTANCE NEAR AN IMPURITY IN AN ANISOTROPIC SUPERCONDUCTOR [J].

BYERS, JM ;

FLATTE, ME ;

SCALAPINO, DJ .

PHYSICAL REVIEW LETTERS, 1993, 71 (20) :3363-3366

[3] Low-temperature penetration depth of κ-(ET)2Cu[N(CN)2]Br and κ-(ET)2Cu(NCS)2 [J].

Carrington, A ;

Bonalde, IJ ;

Prozorov, R ;

Giannetta, RW ;

Kini, AM ;

Schlueter, J ;

Wang, HH ;

Geiser, U ;

Williams, JM .

PHYSICAL REVIEW LETTERS, 1999, 83 (20) :4172-4175

[4] Low-energy quasiparticles in cuprate superconductors: A quantitative analysis [J].

Chiao, M ;

Hill, RW ;

Lupien, C ;

Taillefer, L ;

Lambert, P ;

Gagnon, R ;

Fournier, P .

PHYSICAL REVIEW B, 2000, 62 (05) :3554-3558

[5] Quasiparticle transport in the vortex state of YBa2Cu3O6.9 [J].

Chiao, M ;

Hill, RW ;

Lupien, C ;

Popic, B ;

Gagnon, R ;

Taillefer, L .

PHYSICAL REVIEW LETTERS, 1999, 82 (14) :2943-2946

[6]

DASTUTO M, 1996, HIGH TEMPERATURE SUP, P343

[7]

DEGENNES PG, 1966, SUPERCONDUCTIVITY ME, P137

[8] EFFECT OF ZN, GA AND NI SUBSTITUTION ON THE SUPERCONDUCTING PROPERTIES OF THE ELECTRON DOPED SYSTEM ND-CE-CU-O [J].

FELNER, I ;

HECHEL, D ;

YARON, U .

PHYSICA C, 1990, 165 (3-4) :247-250

[9] Local electronic structure of defects in superconductors [J].

Flatté, ME ;

Byers, JM .

SOLID STATE PHYSICS - ADVANCES IN RESEARCH AND APPLICATIONS, VOL 52, 1999, 52 :137-228

[10] ELECTRONIC TUNNELING INTO AN ISOLATED VORTEX IN A CLEAN TYPE-II SUPERCONDUCTOR [J].

GYGI, F ;

SCHLUTER, M .

PHYSICAL REVIEW B, 1990, 41 (01) :822-825

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