RELATION OF MAGNETO-OPTICAL PROPERTIES OF FREE-EXCITONS TO SPIN ALIGNMENT OF MN2+ IONS IN CD1-XMNXTE

被引：864

作者：

GAJ, JA

PLANEL, R

FISHMAN, G

机构：

[1] Groupe de Physique des Solides de l'E.N.S., Université Paris VII, Tour 23, 2, Place Jussieu

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 29卷 / 05期

关键词：

D O I：

10.1016/0038-1098(79)91211-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A direct comparison of the splitting of free exciton states with the magnetic moment of the Mn2+ ion system shows excellent agreement with simple exchange interaction model throughout the composition range studied (0.005 < x < 0.3) at liquid helium temperature in magnetic field up to 5.6 T. Measurements of magnetic moments up to 15.5 T at 1.5 K show paramagnetic behaviour of samples with low manganese contents. With increasing amount of manganese mile fraction, strong influence of interaction of antiferromagnetic type between Mn2+ ions is observed. Comparison of optical and magnetic data yields refined values of exchange integrals of Mn2+ ions with conduction and valence electrons: 0.22 and -0.88 eV, respectively. © 1979.

引用

页码：435 / 438

页数：4

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