Investigating. magnetic properties by quantum Monte Carlo simulations

被引：4
|
作者：
Lin, HQ [1 ]
Shik, HY
Wang, YQ
Batista, CD
Gubernatis, JE
机构：
[1] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China
[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 281卷 / 2-3期
关键词：
itinerant ferromagnetism; strongly correlated electrons; quantum Monte Carlo;
D O I：
10.1016/j.jmmm.2004.04.128
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We briefly review the results of recent work establishing a new mechanism for itinerant ferromagnetism in the periodic Anderson model. The novel mechanism, called the segmented band mechanism, whose energy scale is up to two orders of magnitude larger than the RKKY mechanism, is determined by a competition between two energy scales set by certain band features. Here, we report preliminary simulation results studying the effects of band dispersion on these scales and hence on the stability of the ferromagnetic state. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：240 / 246
页数：7
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