Sublattice magnetizations in non-zero magnetic field in an antiferromagnetic infinite-range Ising model

被引：2
作者：
Ayuela, A.
Klein, D. J.
March, N. H.
机构：
[1] Donostia Int Phys Ctr, DIPC, San Sebastian 20018, Donostia, Spain
[2] Texas A&M Univ, Dept Marine Sci, Galveston, TX 77553 USA
[3] Univ Oxford, Oxford, England
来源：
PHYSICS LETTERS A | 2007年 / 362卷 / 5-6期
关键词：
D O I：
10.1016/j.physleta.2006.06.057
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The critical line of an Ising antiferromagnet (AF) with short-range exchange interactions has been discussed fairly recently by Wang and Kim. Their results may prove appropriate to some insulating AFs. Here, because of possible relevance to metallic AFs such as FeNiCr alloys, we study the Ising model in the opposite limit in which the exchange interactions become infinite range. In particular, we present numerical results for the sublattice magnetizations m(A) and m(B) as a function of the temperature and applied field. Then, using the so-called smoothness postulate, the critical line of an AF with infinite-range interactions is obtained. (c) 2006 Published by Elsevier B.V.
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收藏
页码：468 / 470
页数：3
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