Spin-fluctuation exchange study of superconductivity in two- and three-dimensional single-band Hubbard models

被引：75

作者：

Arita, R ^{[1
]}

Kuroki, K ^{[1
]}

Aoki, H ^{[1
]}

机构：

[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.60.14585

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to identify the most favorable situation for superconductivity in the repulsive single-band Hubbard model, we have studied instabilities for d-wave pairing mediated by antiferromagnetic spin fluctuations and p-wave pairing mediated by ferromagnetic fluctuations with the fluctuation exchange approximation in both two dimensions and three dimensions. By systematically varying the: band filling and band structure we have shown that (i) d pairing is stronger in two dimensions than in three-dimensions and (ii) p pairing is much weaker than d pairing, [S0163-1829(99)04446-X].

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页码：14585 / 14588

页数：4

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