NDLI: Ferromagnetic resonance of nonstoichiometric zinc ferrite and cobalt-doped zinc ferrite nanoparticles

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Ferromagnetic resonance of nonstoichiometric zinc ferrite and cobalt-doped zinc ferrite nanoparticles

Content Provider	Semantic Scholar
Author	Hochepied, Jean-François Piléni, M. P.
Copyright Year	2001
Abstract	Ferromagnetic resonance spectra of zinc ferrite and cobalt doped zinc ferrite nanoparticles, measured at various temperatures, exhibit an invariant point at a given field. This makes it possible to determine the equation relating the resonance field shift to the peak-to-peak linewidth. When particles are frozen in a matrix in a magnetic field, the anisotropy constant of the material can be derived from the angular variation of the resonance field. This procedure is useful to determine the thermal dependence of the anisotropy constant, but is shown to require various freezing temperatures experiments to estimate the accuracy of the deduced anisotropy constant values. It is also shown that the angular dependence of the resonance field is similar for a uniaxial (zinc ferrite) and cubic (zinc ferrite containing 40% cobalt ions) anisotropy. This unexpected result is explained by the weakness of the texturation, leading to a distribution in easy axes directions.
Starting Page	45
Ending Page	52
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1016/S0304-8853(01)00044-0
Alternate Webpage(s)	http://magneticliquid.narod.ru/autority/310.pdf
Alternate Webpage(s)	https://doi.org/10.1016/S0304-8853%2801%2900044-0
Volume Number	231
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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