SO(5) theory of insulating vortex cores in high-Tc materials

被引：39

作者：

Andersen, BM ^{[1
]}

Bruus, H ^{[1
]}

Hedegård, P ^{[1
]}

机构：

[1] APG, Niels Bohr Inst, Orsted Lab, DK-2100 Copenhagen 0, Denmark

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.61.6298

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the fermionic states of the antiferromagnetically ordered vortex cores predicted to exist in the superconducting phase of the proposed SO(5) model of strongly correlated electrons. Our model calculation gives a natural explanation of the recent STM measurements on BSCCO, which in surprising contrast to YBCO revealed completely insulating vortex cores.

引用

页码：6298 / 6302

页数：5

共 24 条

[1] Superconducting vortex with antiferromagnetic core [J].

Arovas, DP ;

Berlinsky, AJ ;

Kallin, C ;

Zhang, SC .

PHYSICAL REVIEW LETTERS, 1997, 79 (15) :2871-2874

[2] Excitations in antiferromagnetic cores of superconducting vortices [J].

Bruus, H ;

Eriksen, KA ;

Hallundbæk, M ;

Hedegård, P .

PHYSICAL REVIEW B, 1999, 59 (06) :4349-4357

[3] BOUND FERMION STATES ON A VORTEX LINE IN A TYPE-II SUPERCONDUCTOR [J].

CAROLI, C ;

DEGENNES, PG ;

MATRICON, J .

PHYSICS LETTERS, 1964, 9 (04) :307-309

[4] Quantitative test of a microscopic mechanism of high-temperature superconductivity [J].

Demler, E ;

Zhang, SC .

NATURE, 1998, 396 (6713) :733-735

[5]

EDER R, CONDMAT9707233

[6] Self-consistent electronic structure of a dx2-y2 and a dx2-y2+idxy vortex [J].

Franz, M ;

Tesanovic, Z .

PHYSICAL REVIEW LETTERS, 1998, 80 (21) :4763-4766

[7] ANGULAR BAND-STRUCTURE OF A VORTEX LINE IN A TYPE-II SUPERCONDUCTOR [J].

GYGI, F ;

SCHLUTER, M .

PHYSICAL REVIEW LETTERS, 1990, 65 (14) :1820-1823

[8] SELF-CONSISTENT ELECTRONIC-STRUCTURE OF A VORTEX LINE IN A TYPE-II SUPERCONDUCTOR [J].

GYGI, F ;

SCHLUTER, M .

PHYSICAL REVIEW B, 1991, 43 (10) :7609-7621

[9] 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

[10] Exact realization of SO(5) symmetry in extended Hubbard models [J].

Henley, CL .

PHYSICAL REVIEW LETTERS, 1998, 80 (16) :3590-3593

← 1 2 3 →