Domain wall dispersions: Relaxation and resonance in Ni-Zn ferrite doped with V2 O3
Por:
Herrera G.
Publicada:
1 ene 2010
Categoría:
Physics and Astronomy (miscellaneous)
Resumen:
The complex permeability dispersions: relaxation and resonance are investigated in the Ni0.7 Zn0.3 Fe2 O 4 ferrites doped with V2 O3 at different weight percent. The complex permeability was measured at frequencies in the 30 kHz to 6 GHz range. The intragranular porosity plays an important role to distinguish between relaxation and resonant dispersion. The results obtained show that a tight grain size distribution leads to a resonant character, while a wide grain size distribution results in a mixed dispersion. The complex permeability results were modeled with the resonant RCL equivalent circuit formed by a series RL arrangement in parallel with a capacitor C. The experimental results and the model are in agreement. © 2010 American Institute of Physics.
Filiaciones:
Herrera G.:
Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad de Valencia, 46100 Burjasot, Valencia, Spain
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