Saturation magnetizations and Curie temperatures of Co-Zn Y-type ferrites

被引：39

作者：

Lee, SG ^{[1
]}

Kwon, SJ ^{[1
]}

机构：

[1] POSTECH,CTR MAT SCI & ENGN,POHANG 790784,SOUTH KOREA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1996年 / 153卷 / 03期

关键词：

D O I：

10.1016/0304-8853(95)00559-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work studies the sigma(s) and T-C of Co-Zn mixed Y-type ferrite (BaCo1-xZnxFe6O11, x = 0-1) powders, prepared by the co-precipitation method. The sigma(s, 0 kappa) and T-C change linearly with zinc content. CoY shows the highest T-C (595 K) and the lowest sigma(s, 0 kappa) (32.1 emu/g), while ZnY has the lowest T-C (373 K) and the highest sigma(s, 0 kappa) (73.6 emu/g). At room temperature, however, the maximum sigma(s) appears at around x = 0.75 (34.9 emu/g). The presence of zinc weakens the superexchange interaction, without changing the spin directions of other cations, over the whole composition range. It simply increases the net magnetic moment.

引用

页码：279 / 284

页数：6

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