Magneto-optical properties of Nd0.5Bi2.5Fe4GaO12 thin films on glass substrates with various thicknesses prepared using metal-organic decomposition

Nd0.5Bi2.5Fe4GaO12 (Bi2.5:NIGG) thin films with thicknesses of d = 200–1200 nm are prepared on Nd2BiFe4GaO12 (Bi1:NIGG) buffer layers on glass substrates using metal-organic decomposition. The shapes of the Faraday rotation spectra and hysteresis did not change with an increasing film thickness. The Faraday rotation angles increased in proportion with the film thickness, indicating that Bi2.5:NIGG grew without any deterioration for thicknesses up to 1200 nm.