抄録
We report the preparation and characterization of bismuth substituted gadolinium iron garnet thin films on (111) gadolinium gallium garnet (GGG) substrates prepared by metal organic decomposition (MOD). Magnetization, Faraday rotation and X-ray diffraction (XRD) were used to examine their dependence on annealing temperatures and different annealing gas mixture (with and without O2). Our results from measurements revealed that Bi substituted gadolinium iron garnet samples annealed without O2 (100% N2) crystallized at lower annealing temperatures. The magnetic fields to saturate the Faraday rotation were larger for the samples annealed without O2 (100% N2) than those of samples annealed with 20% O2. The possible mechanisms responsible for these phenomena are discussed.
