EXISTENCE OF A PHASE-TRANSITION IN A SPIN-1/2 FALICOV-KIMBALL MODEL

被引：11

作者：

BRANDT, U

FLEDDERJOHANN, A

机构：

[1] Institut für Physik, Universität Dortmund, Dortmund 50, W-4600, Otto-Hahn-Strasse

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1992年 / 87卷 / 01期

关键词：

D O I：

10.1007/BF01308265

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper we present a proof for the existence of a phase transition in the symmetric case of the spin-1/2 Falicov-Kimball model in more than one dimension. For a certain regime of the parameters of this model we are able to show, that the superstructure of the localized f-electrons in the ground-state, which has been investigated and published some time ago, persists in part up to small nonzero temperatures.

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页码：111 / 116

页数：6

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