Magnetic and Magneto-Optical Properties of Nano-Size Bi-YIG Particles Dispersed in a Plastic Binder

摘要

Magneto-optical films were prepared by coating nano-size Bi-YIG particles, the Faraday rotation of the films were measured. The particle size was changed by milling with a planetary milling machine from 1 h to 100 h. The magnetic and magneto-optical properties were measured. The Ms of the films dropped with milling time, however, the peak values of Faraday rotation increased. The Faraday rotation spectra of the films changed with particle size. These results indicate that theJVv magneto-optical properties of the coated films differ from those of sputterd films. The figure of merit of the coated films was 3.0 and comparable to that of sputtered films.