Abstract
We previously developed quaternary diluted magnetic semiconductor (DMS; CdMnCoTe) films that exhibit a large Faraday rotation in the visible region at room temperature. We newly prepared four types of DMS films deposited on quartz glass substrates by molecular beam epitaxy (MBE). The compositions of the DMS films are CdMnTe, CdMnCoTe, ZnMnTe, and ZnMnCoTe. To determine the basic characteristics of these DMS films, we evaluated their transparency and Faraday rotation, and evaluated the ac magneto-optical properties of the DMS film (CdMnCoTe) at 500 Hz. Finally, we discussed the potential of these DMS films in the development of applications such as optical CT.
