MAGNETIC-PROPERTIES OF GAMMA-FE2O3 SMALL PARTICLES PREPARED BY SPRAY-PYROLYSIS

被引：8
作者：
LOPEZ, A
LAZARO, FJ
GONZALEZCARRENO, T
MORALES, MP
SERNA, CJ
机构：
[1] UNIV ZARAGOZA, CSIC, ICMA, E-50015 ZARAGOZA, SPAIN
[2] CSIC, INST CIENCIA MAT, E-28006 MADRID, SPAIN
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 140卷
关键词：
D O I：
10.1016/0304-8853(94)00793-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Small particles of gamma-Fe2O3 synthesized by spray pyrolysis have been studied by ac susceptibility. They are made out of nanometric crystallites resulting in dense and hollow spherical aggregates. The results show the transition from the superparamagnetic to blocked state. The anisotropy and magnetic moment per aggregate are less than for single particles of the same dimensions.
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页码：383 / 384
页数：2
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