Magneto-optical properties of four-element semimagnetic semiconductor CdMnCoTe films on quartz glass

Abstract Magneto-optical properties in the visible wavelength region have been studied with four-element semimagnetic semiconductor CdMnCoTe films deposited on quartz glass substrates by using MBE equipment. A Faraday rotation value of 0.3 deg/cmG in the (Cd 0.647 Mn 0.34 Co 0.013 ) 0.5 Te 0.5 film has been observed at 570 nm. This is approximately two times larger than the Faraday rotation for (Cd 0.61 Mn 0.39 ) 0.5 Te 0.5 film on quartz glass. By using a vibrating-specimen magnetometer, it has been confirmed that the prepared (Cd 0.647 Mn 0.34 Co 0.013 ) 0.5 Te 0.5 film is paramagnetic.