The effects of spark plasma sintering consolidation on the ferromagnetic resonance spectra (FMR) of Ni-Zn ferrites


Por: Ortega-Zempoalteca R., Flores-Arias Y., Vázquez-Victorio G., Gaudisson T., Ammar S., Vargas-Osorio Z., Acevedo-Salas U., Valenzuela R.

Publicada: 1 may 2014
Resumen:
Magnetic nanoparticles (NPs) of magnetite and Ni-Zn ferrites, synthesized by the forced hydrolysis in a polyol method, were used as the starting material to consolidate them by means of the spark plasma sintering (SPS) method. The microstructural changes were analyzed by X-ray diffraction, transmission electron microscopy (TEM), magnetic hysteresis loops, and ferromagnetic resonance (FMR) measurements. FMR spectra changed from a high resonance field and small linewidth for the nanoparticles to a spectrum with reduced resonance field with extremely broadened linewidths for the consolidated materials. These effects can be ascribed to the evolution from superparamagnetic NPs to the formation of a nanostructured ceramic structure with high grain-to-grain interactions and with increased randomly distributed anisotropy axes. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Filiaciones:
Ortega-Zempoalteca R.:
 Univ Nacl Autonoma Mexico, Inst Invest Mat, Dept Mat Metal & Ceram, Mexico City 04510, DF, Mexico

Flores-Arias Y.:
 Univ Nacl Autonoma Mexico, Inst Invest Mat, Dept Mat Metal & Ceram, Mexico City 04510, DF, Mexico

Vázquez-Victorio G.:
 Univ Nacl Autonoma Mexico, Inst Invest Mat, Dept Mat Metal & Ceram, Mexico City 04510, DF, Mexico

Gaudisson T.:
 Laboratoire ITODYS, Université Paris-Diderot, CNRS-UMR-7086, 75205 Paris cedex, France

Ammar S.:
 Laboratoire ITODYS, Université Paris-Diderot, CNRS-UMR-7086, 75205 Paris cedex, France

Vargas-Osorio Z.:
 Univ Nacl Autonoma Mexico, Inst Invest Mat, Dept Mat Metal & Ceram, Mexico City 04510, DF, Mexico

Acevedo-Salas U.:
 Univ Nacl Autonoma Mexico, Inst Invest Mat, Dept Mat Metal & Ceram, Mexico City 04510, DF, Mexico

Valenzuela R.:
 Univ Nacl Autonoma Mexico, Inst Invest Mat, Dept Mat Metal & Ceram, Mexico City 04510, DF, Mexico
ISSN: 18626300
Editorial
Wiley-VCH Verlag, PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY, Alemania
Tipo de documento: Article
Volumen: 211 Número: 5
Páginas: 1062-1066
WOS Id: 000336217800013