X-RAY SINGLE-CRYSTAL STUDY OF COBALT-TIN CONTAINING HEXAGONAL FERRITES - BAFE12-2XCOXSNXO19 (X-SIMILAR-TO-1.28) AND BAFE4-2YSN2+YCOYO11 (SIMILAR-TO-1.32)

被引：7

作者：

SANDIUMENGE, F ^{[1
]}

GALI, S ^{[1
]}

RODRIGUEZ-CLEMENTE, R ^{[1
]}

机构：

[1] UNIV BARCELONA, DEPT CRISTALLOG, E-08028 BARCELONA, SPAIN

来源：

MATERIALS RESEARCH BULLETIN | 1992年 / 27卷 / 04期

关键词：

HEXAGONAL FERRITES; COBALT; TIN; OXIDES;

D O I：

10.1016/0025-5408(92)90018-U

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A X-ray single crystal diffraction comparative study of Co-Sn containing barium M-type and R-type ferrites, which consist of ...SRS*R*..., and ...RR*... stackings, respectively, is reported. X-ray diffraction does not permit the distinction between Fe and Co, but Sn site occupancies can be univocally determined for the different crystallographic sites. As expected, Sn4+ cations only enter the octahedral sites and a pronounced occupational hierarchy within them is established. The observed cation site selectivity may be correlated with the magnetic behaviour of these compounds. Furthermore, the calculation of apparent valencies allows to estimate the location of Co2+ cations.

引用

页码：417 / 424

页数：8