INVESTIGADORES
MARIN RAMIREZ oscar Alonso
congresos y reuniones científicas
Título:
Magnetic Properties of Mn1-xZnx Ferrite nanoparticles synthesized at room temperature
Autor/es:
MARÍN RAMÍREZ, OSCAR ALONSO; A. MENDOZA
Lugar:
Zacatecas
Reunión:
Workshop; Pan-American Advanced Study Institute: Electronic States and Excitations on Nanostructures; 2007
Institución organizadora:
National Science Fundation (NSF) y CINVESTAV
Resumen:
We report on magnetic resonance of MnxZn1-x Ferrite nanoparticles obtained by a normal micellar technique. The EPR measurements at T=180K were carried out in the 0 < x < 0.75 range. The EPR spectra show the presence of the Fe in octahedral and tetrahedral sites. The behavior of the peak-to-peak linewidth Hpp and the resonant field shift, as a function of x, has been interpreted as the presence of local fields resulting in a possible smooth transition between superpara-magnetism and ferrimagnetism.
