Superconductivity in the two-dimensional Hubbard model close to the metal-insulator transition: A strong-coupling description

被引：13

作者：

Zielinski, J

Mierzejewski, M

Entel, P

机构：

[1] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland

[2] Univ Duisburg Gesamthsch, D-47048 Duisburg, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.57.10311

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss the problem of phonon-induced superconductivity in the two-dimensional Hubbard model close to the metal-insulator transition. The Coulomb correlations have been taken into account within the Hubbard I approximation, whereas superconductivity is treated by the Eliashberg scheme. The superconducting transition temperature has been evaluated for the anisotropic s-wave and d-wave channels. Results support the view that the gap function is of mixed, dfs wave, symmetry but with a dominating d-wave component. [S0163-1829(98)09717-3].

引用

页码：10311 / 10313

页数：3

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