Ferromagnetism in the strong hybridization regime of the periodic Anderson model

被引：11

作者：

Batista, CD ^{[1
]}

Bonca, J

Gubernatis, JE

机构：

[1] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA

[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[3] Univ Ljubljana, FMF, Dept Phys, Ljubljana, Slovenia

[4] Jozef Stefan Inst, Ljubljana, Slovenia

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.68.064403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We determine exactly the ground state of the one-dimensional periodic Anderson model (PAM) in the strong hybridization regime. In this regime, the low energy sector of the PAM maps into an effective Hamiltonian that has a ferromagnetic ground state for any electron density between half and three-quarters filling. This rigorous result proves the existence of a new magnetic state that was excluded in the previous analysis of the mixed valence systems.

引用

页数：4

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