Title :
Faraday rotation of a cadmium doped spinel ferrite single crystal
Author :
Ostoréro, J. ; Guillot, M. ; Artinian, M.
Author_Institution :
Lab. de Magnetisme et d´´Optique des Solides, CNRS, Meudon, France
fDate :
11/1/1988 12:00:00 AM
Abstract :
Faraday rotation (FR) measurements are reported for single crystals of cobalt cadmium spinel ferrite (Cd0.25Co0.75 Fe2O4) at 1.15 μm in a magnetic field up to 20 kOe, in the 7 to 600 K temperature range. The results are compared to the observed magnetic properties. Large negative FR up to 500°/cm are found to be associated with an increase of the magnetization. At 300 K, a 4 πM value of 5400 G and an FR of -3600°/cm are attained. Below 150 K, a field-induced transition is observed in both magnetooptical and magnetic behavior. The results are briefly discussed in terms of Co2+ ion distribution
Keywords :
Faraday effect; cadmium compounds; cobalt compounds; ferrites; magneto-optical recording; 1.15 micron; 5400 G; 7 to 600 K; Cd0.25Co0.75Fe2O4; Co2+ ion distribution; Faraday rotation; field-induced transition; magnetic behavior; magnetic field; magnetic properties; magnetooptical behavior; single crystals; temperature range; Cadmium; Cobalt; Crystals; Ferrites; Iron; Magnetic field measurement; Magnetic properties; Magnetization; Rotation measurement; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
