Magnetic and Magneto-Optical Properties and Crystallization Kinetics of Rapid-Thermally Crystallized Bi-Substituted Garnet Films

Abstract

A rapid thermal anneal for forming films of garnet phase deposited by sputtering is discussed in connection with magnetic, magneto-optical and optical properties. It was found the rapid thermal anneal kinetics in a temperature range from 620 to 680 °C involve a high activation energy for crystallization which is a diffusion controlled growth, whereas in a higher temperature range it has a relatively low activation energy. The controllability of the magnetic properties of Tcomp. as well as coercivity can be achieved through the rapid thermal annealing method. © 1990 IEEE