Doniach diagram for ordered, disordered and underscreened Kondo lattices

被引：9
作者：
Coqblin, B. [1 ]
Iglesias, J. R. [2 ]
Perkins, N. B. [3 ,4 ]
Magalhaes, S. G. [5 ]
Zimmer, F. M. [5 ]
机构：
[1] Univ Paris Sud, UMR 8502 CNRS, Phys Solides Lab, F-91405 Orsay, France
[2] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
[3] Tech Univ Carolo Wilhelmina Braunschweig, Inst Theoret Phys, D-38106 Braunschweig, Germany
[4] Bogoliubov Lab Theoret Phys, Dubna, Russia
[5] Univ Fed Santa Maria, Lab Mecan Estat & Teor Mat Condensada, BR-97105900 Santa Maria, RS, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 14期
关键词：
Kondo lattice; underscreened Kondo effect; cerium compounds; uranium compounds;
D O I：
10.1016/j.jmmm.2008.02.101
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Doniach's diagram has been originally proposed to describe the competition between the local Kondo effect and the inter-site RKKY interactions in cerium compounds. Here we discuss the extension of this diagram to different variations of Kondo lattice model. We consider (a) ordered cerium compounds where the competition between magnetic order and Kondo effect plays an important role, as in CeRh2Si2, (b) disordered cerium systems with competing spin glass phase, magnetic ordered phases and a Kondo phase, as in the heavy fermion cerium alloy CeCuxNi1-x and (c) uranium compounds where a coexistence between Kondo effect and ferromagnetic order has been observed, as in UTe. We show that all these cases can be described by a generalized Doniach phase diagram. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1989 / 1994
页数：6
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