Phase diagram of the weak-coupling two-dimensional t-t′ Hubbard model at low and intermediate electron density

被引：115

作者：

Hlubina, R ^{[1
]}

机构：

[1] Comenius Univ, Dept Solid State Phys, Bratislava 84215, Slovakia

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.59.9600

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the stability of the ferromagnetic phase of the t-t' weak-coupling Hubbard model at low and intermediate electron density within the T-matrix. approximation. The superconducting instability of the paramagnetic phase is discussed by a perturbative evaluation of the superconducting vertex. [S0163-1829(99)11413-9].

引用

页码：9600 / 9605

页数：6

共 30 条

[1] Orbital dependent superconductivity in Sr2RuO4 [J].

Agterberg, DF ;

Rice, TM ;

Sigrist, M .

PHYSICAL REVIEW LETTERS, 1997, 78 (17) :3374-3377

[2] Vortex lattice structures of Sr2RuO4 [J].

Agterberg, DF .

PHYSICAL REVIEW LETTERS, 1998, 80 (23) :5184-5187

[3]

Anderson P. W., 1997, THEORY SUPERCONDUCTI

[4]

Anderson P.W., 1984, Basic Notions of Condensed Matter Physics

[5]

ANNETT J, 1996, PHYSICAL PROPERTIES, V5

[6]

BUHLER C, CONDMAT9807034

[7] PAIRING INSTABILITIES IN THE 2-DIMENSIONAL HUBBARD-MODEL [J].

CHUBUKOV, AV ;

LU, JP .

PHYSICAL REVIEW B, 1992, 46 (17) :11163-11166

[8] Ferromagnetic transition and phase diagram of the one-dimensional Hubbard model with next-nearest-neighbor hopping [J].

Daul, S ;

Noack, RM .

PHYSICAL REVIEW B, 1998, 58 (05) :2635-2650

[9] Magnetic phases near the Van Hove singularity in s- and d-band Hubbard models [J].

Fleck, M ;

Oles, AM ;

Hedin, L .

PHYSICAL REVIEW B, 1997, 56 (06) :3159-3166

[10] Lattice dependence of saturated ferromagnetism in the Hubbard model [J].

Hanisch, T ;

Uhrig, GS ;

MullerHartmann, E .

PHYSICAL REVIEW B, 1997, 56 (21) :13960-13982

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