NON-EQUIVALENCY OF OCTAHEDRAL-SITE FE3+ IONS IN SUBSTITUTED FERRITE-GARNET

被引：11

作者：

BOKOV, VA

JUSHCHUK, SI

POPOV, GV

机构：

[1] Institute of Semiconductors, Academy of Sciences, Leningrad

来源：

SOLID STATE COMMUNICATIONS | 1969年 / 7卷 / 03期

关键词：

D O I：

10.1016/0038-1098(69)90749-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Mössbauer effect at the nuclei 57Fe has been investigated in the garnet Y0.3Ca2.7Fe3.65V1.35O12. In the octahedral sublattice some non-equivalent sites of Fe3+ ions were observed. This non-equivalency was shown to result from a different number of Fe3+ ions in the nearest-neigbour tetrahedral sites. Effective magnetic fields at the Fe3+ nuclei in non-equivalent a-sites have different values and different temperature dependences. It has been concluded that at a given temperature (far from 0° K) the value of Heff depends on the number of magnetic neighbours in the nearest tetrahedral environment of the Fe3+ ions. © 1969.

引用

页码：373 / &