MAGNETIC-ION TRIPLET CLUSTERS AND NON-NEAREST-NEIGHBOR EXCHANGE EFFECT IN (CD,MN)TE

被引：23

作者：

WANG, XM ^{[1
]}

HEIMAN, D ^{[1
]}

FONER, S ^{[1
]}

BECLA, P ^{[1
]}

机构：

[1] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.41.1135

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Internal quantum structures of Mn2+ spin clusters in Cd1-xMnxTe are studied by Faraday-rotation measurements up to 60 T at T4 K. For x=0.1 we observe the contribution of Mn2+ triplet clusters, as well as the saturation of Mn2+ pairs. Overall good agreement between the experiments and a nearest-neighbor cluster model is obtained. By quantitative analysis of the data for pairs, we find a linear relation between bias field (average exchange field due to more-distant interactions) and total magnetization, independent of x (for x 0.1). This relation allows us to determine the strength of next-nearest-neighbor interactions, J2/kB=-1.1 K. © 1990 The American Physical Society.

引用

页码：1135 / 1139

页数：5

共 19 条

[1]

AGGARWAL RL, 1985, 17TH P INT C PHYS SE, P1419

[2] INTERBAND FARADAY-ROTATION IN DILUTED MAGNETIC SEMICONDUCTORS - ZN1-XMNXTE AND CD1-XMNXTE [J].