Magnetic properties of Fe-Al for quenched diluted spin-1 Ising model

被引：12

作者：

Freitas, A. S. ^{[1
,4
]}

de Albuquerque, Douglas F. ^{[1
,2
]}

Fittipaldi, I. P. ^{[3
]}

Moreno, N. O. ^{[1
]}

机构：

[1] Univ Fed Sergipe, Dept Fis, BR-49100000 Sao Cristovao, SE, Brazil

[2] Univ Fed Sergipe, Dept Matemat, BR-49100000 Sao Cristovao, SE, Brazil

[3] Representacao Reg Minist Ciencia, BR-50740540 Recife, PE, Brazil

[4] Inst Fed Sergipe, BR-49400000 Lagarto, SE, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2014年 / 362卷

关键词：

Fe-Al alloy; Ising model; EFT; HEISENBERG-MODEL; RANDOM-FIELD; ALLOYS; FERROMAGNETISM;

D O I：

10.1016/j.jmmm.2014.03.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the phase diagram of Fe1-qAlq alloys via the quenched site diluted spin-1 ferromagnetic Ising model by employing effective field theory. One suggests a new approach to exchange interaction between nearest neighbors of Fe that depends on the powers fo the Al (q) instead of the linear dependence proposed in other papers. In such model we propose the same kind of hte exchange interaction in which the iron-nickel alloys obtain and excellent theoretical description of hte experimental data of the T-q phase diagram for all Al concentration q. (C) 2014 Elsevier B.V.All rights reserved.

引用

页码：226 / 228

页数：3

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