SITE PREFERENCE FOR CO2+ AND TI4+ IN CO-TI SUBSTITUTED BARIUM FERRITE

被引：71

作者：

ZHOU, XZ ^{[1
]}

MORRISH, AH ^{[1
]}

LI, ZW ^{[1
]}

HONG, YK ^{[1
]}

机构：

[1] ORIENTAL CHEM IND,RES CTR,INCHON,SOUTH KOREA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1109/20.278906

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Co2+ and Ti4+ substituted M-type barium ferrite, BaFe12-2xCoxTixO19, with x from 0 to 0.9 has been prepared using a modified ccramic method and investigated by electron microscopy, vibrating sample magnetometry and Mossbauer spectroscopy. Results show that Co2+ and Ti4+ cations prefer to occupy the 4f(VI) and 2b crystallographic sites, with 4f(IV) and 2a sites are only slightly involved as well for x > 0.6. These site preferences will significantly weaken the uniaxial anisotropy of this material which is attributed to the contribution of iron ions at the 2b and 4f(VI) sites. As a consequence, the coercive force of BaFe12-2xCoxTixO19 drastically decreases and the magnetization remains almost a constant as x increases.

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页码：4654 / 4656

页数：3

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