Antiferromagnetism and pairing in strongly correlated systems

被引：4
|
作者：
Maska, M
机构：
[1] Department of Theoretical Physics, Silesian University, ul. Uniwersytecka 4
来源：
PHYSICAL REVIEW B | 1997年 / 55卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.55.3943
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A competition between antiferromagnetism and s- or d-wave pairing in the t-J model is analyzed beyond the mean-field level. In order to project out the states with doubly occupied sites the electronic self-energy calculated for the infinite-U Hubbard model is introduced in the effective Hamiltonian. Then the Green's function technique has been used to solve this approximated model.
引用
收藏
页码：3943 / 3953
页数：11
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