FINITE-TEMPERATURE MAGNETISM IN THE HUBBARD-MODEL

被引:29
作者
SZCZECH, YH
TUSCH, MA
LOGAN, DE
机构
[1] Physical Chemistry Laboratory, University of Oxford, Oxford OX1 3QZ, South Parks Road
关键词
D O I
10.1103/PhysRevLett.74.2804
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A novel and physically transparent approach to the finite-temperature Hubbard model at half filling is proposed. It recovers not only the correct dimensionality dependence of antiferromagnetism but, in d=3, interpolates properly between weak and strong coupling interaction strengths for the Néel temperature, and enables extraction of related thermodynamic properties. © 1995 The American Physical Society.
引用
收藏
页码:2804 / 2807
页数:4
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