Magnetooptical properties of Cd1-xMnxTe films prepared by ionized cluster beam (ICB) deposition technique.

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Abstract
The optical and magnetooptical properties of Cd1-xMnxTe films prepared by ionized cluster beam (ICB) deposition technique have been studied. Preparation of these films was made by a simultaneous deposition of CdTe and MnTe clusters. Films with the axis preferential orientation were obtained on glass substrates, and epitaxial films were grown on sapphire substrates. The optical band gap was found to increase from 1.5eV to 2.6eV with the increase of composition x, which was controlled by the acceleration voltage. A large dispersion of Faraday rotation was observed near the band gap energy, and the position shifted toward higher photon energy with increasing composition x. The dispersion curve was related to the absorption spectrum near the band gap energy. For the epitaxial film, the value of the Faraday rotation (θFmax= -3.61 × 103deg./cm at H=5kOe) was about two times greater than that for the film deposited on a glass substrate.