MAGNETIC-SUSCEPTIBILITY OF THE STRONGLY CORRELATED HUBBARD-MODEL

被引：6
|
作者：
BARTKOWIAK, M
CHAO, KA
机构：
[1] Division of Physics, Department of Physics and Mathematics, University of Trondheim
来源：
PHYSICAL REVIEW B | 1992年 / 46卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.46.9228
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using the Wick theorem for Hubbard operators, we generate the linked-cluster expansion around the atomic limit of the Hubbard model and use it to calculate the free energy, and the uniform and the staggered magnetic susceptibility up to the fourth order. We have checked all existing controversial results on this problem and found out that our results agree with those of K.-K. Pan and Y.-L. Wang [Phys. Rev. B 43, 3706 (1991)], which were derived with an entirely different method.
引用
收藏
页码：9228 / 9230
页数：3
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