Issue
J. Phys. IV France
Volume 07, Number C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
Page(s) C1-259 - C1-260
DOI https://doi.org/10.1051/jp4:19971100
7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-259-C1-260

DOI: 10.1051/jp4:19971100

Optical Properties of Mixed Cobalt Ferrites

M. Lenglet1, F. Hochu2 and J. Dürr2

1  L.A.S.T.S.M, Université de Rouen, 76821 Mont-Saint-Aignan, France
2  École des Mines de Douai, 59508 Douai, France


Abstract
The optical properties of Co and Mg ferrigallate spinels have been studied near the magnetic transition. The cluster (CoFeO10)15 is characterized by a strong intensification of iron pair excitations and by the existence in ferrimagnetic compounds of a large electronic transition assigned to Co2+ → Fe3+ metal-metal charge transfer at 1.70-1.75 eV.



© EDP Sciences 1997