Magnetic induction of dx2-y2+idxy order in high-Tc superconductors

被引：254

作者：

Laughlin, RB ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 23期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.80.5188

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

I propose that the phase transition in Bi2Sr2CaCu2O8 recently observed by Krishana et al. [Science 277, 83 (1997)] is the development of a small d(xy) superconducting order parameter phased by pi/2 with respect to the principal d(x2-y2) one to produce a minimum energy gap Delta. The violation of both parity and time-reversal symmetry allows the development of a magnetic moment, the key to explaining the experiment. The origin of this moment is a quantized boundary current of I-B = 2e Delta/h at zero temperature.

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页码：5188 / 5191

页数：4

相关论文

共 13 条

[1]

ABANOV AG, CONDMAT9703157

[2] MICROWAVE DETERMINATION OF THE QUASI-PARTICLE SCATTERING TIME IN YBA2CU3O6.95 [J].

BONN, DA ;

LIANG, RX ;

RISEMAN, TM ;

BAAR, DJ ;

MORGAN, DC ;

ZHANG, K ;

DOSANJH, P ;

DUTY, TL ;

MACFARLANE, A ;

MORRIS, GD ;

BREWER, JH ;

HARDY, WN ;

KALLIN, C ;

BERLINSKY, AJ .

PHYSICAL REVIEW B, 1993, 47 (17) :11314-11328

[3] Tunneling into current-carrying surface states of high-T-c superconductors [J].

Fogelstrom, M ;

Rainer, D ;

Sauls, JA .

PHYSICAL REVIEW LETTERS, 1997, 79 (02) :281-284

[4] 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

[5] RESONATING VALENCE BONDS AND D-WAVE SUPERCONDUCTIVITY [J].

KOTLIAR, G .

PHYSICAL REVIEW B, 1988, 37 (07) :3664-3666

[6] Plateaus observed in the field profile of thermal conductivity in the superconductor Bi2Sr2CaCu2O8 [J].

Krishana, K ;

Ong, NP ;

Li, Q ;

Gu, GD ;

Koshizuka, N .

SCIENCE, 1997, 277 (5322) :83-85

[7]

LAUGHLIN RB, 1981, PHYS REV B, V23, P5632, DOI 10.1103/PhysRevB.23.5632

[8] TUNNELING GAP AS EVIDENCE FOR TIME-REVERSAL SYMMETRY-BREAKING AT SURFACES OF HIGH-TEMPERATURE SUPERCONDUCTORS [J].

LAUGHLIN, RB .

PHYSICA C, 1994, 234 (3-4) :280-284

[9] Unusual superconducting state of underdoped cuprates [J].

Lee, PA ;

Wen, XG .

PHYSICAL REVIEW LETTERS, 1997, 78 (21) :4111-4114

[10] Excitation gap in the normal state of underdoped Bi2Sr2CaCu2O8+delta [J].

Loeser, AG ;

Shen, ZX ;

Dessau, DS ;

Marshall, DS ;

Park, CH ;

Fournier, P ;

Kapitulnik, A .

SCIENCE, 1996, 273 (5273) :325-329