ISSN:
1432-0630
Keywords:
BaFe12O19 hexaferrite
;
Diamagnetic substitutions
;
Hard magnetic properties
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract The exchange parameters of BaFe12O19 have been calculated from the temperature dependence of the saturation magnetization using the molecular field theory. Under the assumption that the exchange parameters do not change for diamagnetic substitutions of the Fe3+ ions, it is shown that the temperature coefficient of the magnetization at room temperature cannot be decreased without decreasing the magnetization. Diamagnetic substitution in the octahedralf 2 site would solely increase the saturation magnetization.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00884410
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