YIG: Bi₂O₃ Nanocomposite Thin Films for Magnetooptic and Microwave Applications

Figure 1

A summary of optimized annealing regimes used to crystallize the stoichiometric YIG and also YIG-Bi₂O₃ thin films showing the upper and lower annealing temperature limits. The most suitable annealing temperatures for each batch of samples were found by running several annealing trials for each batch whilst varying the process durations between 30 minutes and 3 hours, followed by measurements of specific Faraday rotation; we found that the best annealing durations for these film types were between 30 and 60 minutes.