Distant-neighbors exchange constants in Cd1-xMnxSe from magnetization steps

被引：3

作者：

Cajacuri, RA

Gratens, X

ter Haar, E

Bindilatti, V

Oliveira, NF

Shapira, Y

Golacki, Z

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

[2] Tufts Univ, Dept Phys & Astron, Medford, MA 02155 USA

[3] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷 / PART II期

基金：

巴西圣保罗研究基金会;

关键词：

diluted magnetic semiconductors; exchange constants; low-temperature magnetization; cluster model;

D O I：

10.1016/S0304-8853(00)01088-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

From magnetization measurements at T = 20 mK on two bulk samples of Cd1-xMnxSe(x = 0.59% and x = 1.15%), four distant-neighbors antiferromagnetic exchange constants have been measured. The results, in order of decreasing strength, after the two Ys for nearest-neighbors pairs, are - 0.35 +/- 0.01 K, - 0.20 +/- 0.01 K, - 0.10 +/- 0.01 K, and - 0.08 +/- 0.01 K. These results confirm the long-range character of the distant-neighbor exchange interactions in the Mn-based II-VI diluted magnetic semiconductors. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：1981 / 1982

页数：2

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