二维与三维单带 Hubbard 模型中超导性的自旋润落交换研究
凝聚态物理
2009-10-31 v2
摘要
为识别单带 Hubbard 模型中超导性最有利的情形,我们在二维和三维中分别研究了由反亚历山大自旋润落交换介导的d型配对和由铁磁润落交换介导的p型配对的不稳定性。通过系统性地变更带填充和带结构,我们表明:(i) d 型配对在二维中强于三维,(ii) p 型配对远弱于d型配对。
关键词
引用
@article{arxiv.cond-mat/9909119,
title = {Spin-fluctuation exchange study of superconductivity in two- and three-dimensional single-band Hubbard models},
author = {Ryotaro Arita and Kazuhiko Kuroki and Hideo Aoki},
journal= {arXiv preprint arXiv:cond-mat/9909119},
year = {2009}
}
备注
RevTex, 5 figures in Postscript, to be published in Phys. Rev. B