Magnetic properties of cobalt ferrite nanoparticles synthesized by sol-gel method

被引：38
|
作者：
George, T. [1 ]
Sunny, A. T. [2 ]
Varghese, T. [3 ]
机构：
[1] Holy Kings Coll Engn & Technol, Pampakkuda 686667, Kerala, India
[2] MG Univ, Sch Chem Sci, Kottayam 686560, Kerala, India
[3] Nirmala Coll, Dept Phys, Nanosci Res Ctr NSRC, Muvattupuzha 686661, Kerala, India
来源：
INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE AND TECHNOLOGY (ICMST 2012) | 2015年 / 73卷
关键词：
BEHAVIOR;
D O I：
10.1088/1757-899X/73/1/012050
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cobalt ferrite nanoparticles of average size 18 nm are synthesized by sol-gel method and investigated the magnetic properties. The saturation magnetization value calculated from vibration sample magnetometer (VSM) studies for CoFe2O4 is lower than the reported value for the bulk. The magnetization curves demonstrate a trend towards the superparamagnetic behavior of the as-prepared CoFe2O4 nanoparticles. The microwave magnetic parameters show a decreasing trend with the increase of frequency.
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页数：3
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