J. Phys. IV France 07 (1997) C1-719-C1-720
Magnetooptical Properties of Ce-Doped YIG Single CrystalsJ. Ostoréro1, M. Escorne1, J. Gouzerh2 and H. Le Gall2
1 UPR 209 du CNRS, 1 place A. Briand, 92195 Meudon cedex France
2 LMIMS du CNRS, 1 place A. Briand, 92195 Meudon cedex, France
The Faraday rotation (FR) of cerium substituted yttrium iron gamets single crystals Y3-xCexFe5O12 (YIG:Ce) with x=0.055 has been investigated at 1152 and 632.8 nm in the 6 K - 600 K temperature range and magnetic field up to 20 kOe applied along the  and  directions. In contrast to magnetic properties, the FR of YIG:Ce is strongly different from FR of pure YIG at both wavelengths. The FR contribution of the Ce3+ ions, mainly attributed to intra-ionic electric dipole transitions between the 4f1 and 4f0 5d1 configurations, is discussed within the frame of the one-ion model of ferrimagnetic gamets.
© EDP Sciences 1997