MAGNETIC-PROPERTIES OF THE SR(BA)ZNXMN2-X-W HEXAGONAL FERRITES

被引:11
作者
LITSARDAKIS, G [1 ]
SAMARAS, D [1 ]
COLLOMB, A [1 ]
机构
[1] UNIV JOSEPH FOURIER,CNRS,CRISTALLOG LAB,166X,F-38042 GRENOBLE,FRANCE
关键词
Crystals--Structure - Magnetization - Strontium Compounds;
D O I
10.1016/0304-8853(89)90250-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The magnetic properties of the Sr(Ba) ZnxMn2-xFe16O27 series (x = 0.0, 0.66, 1.0, 1.33, 2.0), prepared with a ceramic method, are examined. The Tc of the compounds is 430-375°C. The saturation magnetization M0, anisotropy field HA and high field susceptibility χ0 are obtained from an analysis of the isothermal curves according to the law of approach to saturation, in fields up to 180 kOe. M0 values 71-78 emu/g, increasing with Zn content and HA 11.5 kOe at RT were found. The difference between experimental and theoretical magnetization at 4.2 K, together with the high χ0 values observed, indicate the existence of a random spin canting.
引用
收藏
页码:184 / 188
页数:5
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