Rigorous results for half-filled Kondo lattices

被引：28

作者：

Tsunetsugu, H

机构：

[1] Institute of Applied Physics, University of Tsukuba, Tsukuba

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.55.3042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is proved that the ground state of the half-filled Kondo lattice is unique and spin singlet. For a wide class of the systems including extra interactions with various topology of the lattice structure, this proof is generalized and the total spin of the ground state is determined. A ferromagnetic ground state appears in some special cases and its criterion is given.

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页码：3042 / 3045

页数：4

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