d(x2-y2) symmetry and the pairing mechanism

被引：90

作者：

Bulut, N

Scalapino, DJ

机构：

[1] Department of Physics, University of California, Santa Barbara

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.54.14971

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An important question is, if the gap in the high-temperature cuprates has d(x2-y2) symmetry, what does that tell us about the underlying interaction responsible for pairing? Here we explore this by determining how three different types of electron-phonon interactions affect the d(x2-y2) pairing found within a random phase approximation treatment of the two-dimensional Hubbard model. These results imply that interactions which become more positive as the momentum transfer increases favor d(x2-y2) pairing in a nearly half-filled band.

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页码：14971 / 14973

页数：3

相关论文

共 14 条

[1] EFFECTIVE PARTICLE-PARTICLE INTERACTION IN THE 2-DIMENSIONAL HUBBARD-MODEL [J].

BULUT, N ;

SCALAPINO, DJ ;

WHITE, SR .

PHYSICAL REVIEW B, 1993, 47 (10) :6157-6160

[2] EFFECTIVE ELECTRON-ELECTRON INTERACTION IN THE 2-DIMENSIONAL HUBBARD-MODEL [J].

BULUT, N ;

SCALAPINO, DJ ;

WHITE, SR .

PHYSICAL REVIEW B, 1994, 50 (13) :9623-9626

[3] POSSIBLE DISCREPANCIES BETWEEN TRANSPORT AND SUPERCONDUCTING ELECTRON-PHONON COUPLINGS DUE TO ANISOTROPIC FERMI-SURFACE NESTING [J].

CRESPI, VH ;

COHEN, ML .

SOLID STATE COMMUNICATIONS, 1992, 81 (02) :187-189

[4] Isotope effect and resistivity in the Hubbard model for d-wave superconductivity [J].

Dahm, T ;

Manske, D ;

Fay, D ;

Tewordt, L .

PHYSICAL REVIEW B, 1996, 54 (17) :12006-12009

[5] LARGE CALCULATED ELECTRON-PHONON INTERACTIONS IN LA2-XMXCUO4 [J].

KRAKAUER, H ;

PICKETT, WE ;

COHEN, RE .

PHYSICAL REVIEW B, 1993, 47 (02) :1002-1015

[6]

LEVI BG, 1993, PHYS TODAY, V46, P17

[7] Possible phononic mechanism for d(x(2)-y(2)) superconductivity in the presence of short-range antiferromagnetic correlations [J].

Nazarenko, A ;

Dagotto, E .

PHYSICAL REVIEW B, 1996, 53 (06) :R2987-R2990

[8]

RODRIGUEZ O, 1991, PHYSICA C, V185, P147

[9]

Scalapino D. J., 1995, Physics Reports, V250, P329, DOI 10.1016/0370-1573(94)00086-I

[10] SYMMETRY OF THE ORDER-PARAMETER IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].

SCHRIEFFER, JR .

SOLID STATE COMMUNICATIONS, 1994, 92 (1-2) :129-139