Phase identification of a superparamagnetic iron-oxide/silver nanocomposite

被引：9
|
作者：
Yamamoto, T
Croft, MC
Shull, RD
Hahn, HW
机构：
[1] RUTGERS STATE UNIV,DEPT PHYS,PISCATAWAY,NJ 08855
[2] NATL INST STAND & TECHNOL,MAGNET MAT GRP,GAITHERSBURG,MD 20899
[3] TH DARMSTADT,D-64295 DARMSTADT,GERMANY
来源：
NANOSTRUCTURED MATERIALS | 1995年 / 6卷 / 5-8期
关键词：
D O I：
10.1016/0965-9773(95)00221-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A nanocomposite, composed of a magnetic iron-oxide dispersed in a silver matrix was synthesized by inert gas condensation combined with in situ oxidation and compaction. It was found that the composite exhibits superparamagnetism and that a post annealing treatment modifies the moments and saturation magnetization. The iron oxide phase giving rise to the magnetism was investigated by Mossbauer and X-ray absorption spectroscopies. The magnetic species was identified as gamma-Fe2O3 after the post annealing treatments, whilst Fe and Fe3O4 coexist in the as-prepared loose powder and the as-compacted pellet.
引用
收藏
页码：965 / 968
页数：4
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