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Yafet-Kittel-type magnetic ordering in Ni0.35Zn0.65Fe2O4 ferrite detected by magnetosensitive microwave absorption measurements |
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| Authors: | G Alvarez H Montiel MP Gutierrez |
| Institution: | a Departamento de Materiales Metálicos y Cerámicos, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apartado Postal 70-360, Coyoacan, DF 04510 México b Departamento de Tecnociencias, Centro de Ciencias Aplicadas y Desarrollo Tecnológico de la Universidad Nacional Autónoma de México, México, DF 04510, México c Universidad Anahuac, México Norte, México DF, México d Departamento de Física, ESFM-IPN, U. P. Adolfo López Mateos Edificio 9, Av. Instituto Politécnico Nacional S/N, Col. San Pedro Zacatenco, 07738 DF, México |
| Abstract: | Magnetosensitive microwave absorption measurements of polycrystalline ferrite Ni0.35Zn0.65Fe2O4 was carried out at 9.4 GHz (X-band) as a function of temperature. Temperature dependence of the total linewidth (ΔHpp) deduced from the resonance spectra showed the passage through the Curie point (Tc~430 K). Additionally, the plot ΔHpp vs. T also indicated the existence of another magnetic phase transition at ~240 K, which can be associated with a Yafet-Kittel-type canting of the magnetic moments. Low-field microwave absorption (LFMA) and the magnetically modulated microwave absorption spectroscopy (MAMMAS) were used to give a further knowledge on this material. For low temperature, these techniques give evidence of a Yafet-Kittel-type canting of the magnetic moments. |
| Keywords: | 75 30 Kz 75 50 Gg 76 50 +g |
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