Optical Properties of Mixed Cobalt Ferrites

M. Lenglet , F. Hochu , J. Dürr

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.

Domaines: Articles anciens

M. Lenglet, F. Hochu, J. Dürr. Optical Properties of Mixed Cobalt Ferrites. Journal de Physique IV Proceedings, 1997, 07 (C1), pp.C1-259-C1-260. ⟨10.1051/jp4:19971100⟩. ⟨jpa-00254721⟩