Quantum generalized constant-coupling model for geometrically frustrated antiferromagnets -: art. no. 174433

被引：17

作者：

García-Adeva, AJ ^{[1
]}

Huber, DL ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.63.174433

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A generalized constant-coupling approximation for quantum geometrically frustrated antiferromagnets is presented. Starting from a frustrated unit, we introduce the interactions with the surrounding units in terms of an internal effective field that is fixed by a self-consistency condition. Results for the static magnetic susceptibility and specific heat are compared with previous results in the framework of this same model for the classical limit. The range of applicability of the model is discussed.

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页数：7

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