Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1462151 | Ceramics International | 2013 | 5 Pages |
Abstract
The bulk NiFe2−xBixO4 ferrites with various Bi3+ concentration (x=0, 0.1, 0.15) were synthesized via sol–gel procedure, starting from nickel, bismuth and iron nitrate powders, followed by the conventional thermal treatment. The structural and magnetic properties of the as-prepared ferrites were studied by means of X-ray diffraction, alternating gradient force magnetometry and Faraday balance. The anisotropy constant was determined by the law of approach to saturation (LAS) model. An increasing Bi3+ concentration in NiFe2−xBixO4 leads to a decrease in the saturation magnetization, Néel temperature and the anisotropy constant of the material.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Mohammad Javad Nasr Isfahani, Marjaneh Jafari Fesharaki, Vladimir Šepelák,