Title :
Magneto-optic and infrared study of (Y3-yCey)(Fe,Ga)5O12 garnet films. I. Effect of variable Ce content and heat pulse annealing
Author :
Lopez-Rivera, S. Adan ; Martinez, Leonardo ; Fontal, Bernardo ; Scqueda, F.
Author_Institution :
Grupo Fisica Aplicada, Univ. de Los Andes, Merida, Venezuela
fDate :
1/1/1997 12:00:00 AM
Abstract :
The Faraday rotation and infrared studies of (Y3-yCe y)(Fe,Ga)5O12 (Ce=0 to 20% relative metal content) garnet films deposited on quartz and Gd3Ga5O12 (GGG) are reported. The value of θf reaches a maximum with Ce between 5 and 15%, depending on the heat pulse annealing temperature. The film crystallinity deposited on quartz, analyzed by X-ray diffraction and by sharpening of bands near 500 cm-1 in FTIR, reaches a maximum with Ce=5% and then decreases. Values of the Faraday rotation are related to the crystallinity of the deposited films
Keywords :
Faraday effect; Fourier transform spectra; X-ray diffraction; annealing; cerium compounds; garnets; infrared spectra; magnetic thin films; magneto-optical recording; reflectivity; sputtered coatings; yttrium compounds; (Y3-yCey)(Fe,Ga)5O12 garnet films; 500 cm-1; FTIR reflectance spectra; Faraday rotation; Gd3Ga5O12; Gd3Ga5O12 substrate; RF magnetron sputtering; SiO2; X-ray diffraction; YCeFe5O12Ga5O12; YCeIGGG; band sharpening; film crystallinity; heat pulse annealing; infrared study; magnetooptic recording material; quartz substrate; variable Ce content; Annealing; Argon; Garnets; Infrared heating; Iron; Magnetooptic effects; Optical films; Spectroscopy; Substrates; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
