MAGNETIC-PROPERTIES OF ULTRAFINE CO PARTICLES

被引：74
|
作者：
GANGOPADHYAY, S
HADJIPANAYIS, GC
SORENSEN, CM
KLABUNDE, KJ
机构：
[1] KANSAS STATE UNIV AGR & APPL SCI,DEPT CHEM,MANHATTAN,KS 66506
[2] KANSAS STATE UNIV AGR & APPL SCI,DEPT PHYS,MANHATTAN,KS 66506
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1992年 / 28卷 / 05期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/20.179749
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：
Fine particles of Co have been prepared in the size range of 50 - 350 angstrom by the vapor deposition technique. The dependence of magnetization on size and temperature has been studied. A maximum coercivity of 1500 Oe was obtained for a particle size of 350 angstrom. The magnetic and structural measurements indicate a shell-type structure with a fcc Co core surrounded by a Co-oxide shell. The effect of exchange interactions between the antiferromagnetic Co-oxide shell and the ferromagnetic Co core on the magnetic behavior of the powders has been investigated.
引用
收藏
页码：3174 / 3176
页数：3
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