Abstract
The magneto-optical properties of iron oxide (FeOx) films prepared by reactive ionized cluster beam (R-ICB) technique have been studied by the measurement of Faraday rotation angle (θF). Preparation of FeOx films was made by the deposition of Fe clusters onto a glass substrate under an oxygen pressure 2 ×10-4Torr. In this study, Fe clusters and oxygen partially were ionized and accelerated. The value of θF in the visible and near infrared region remarkably increased with increasing acceleration voltage (Va), which is considered due to Fe+ ions in FeOx films. Also, the Faraday rotation loop in the field perpendicular to the film plane at 632.82 nm showed hysteretic phenomena for a certain value of which is related to the promotion of orientation in the Fe3O4 phase. These results indicate that kinetic energies of Fe clusters and oxygen act effectively on the formation of FeOx films of different composition (x), and that the magneto-optical properties of prepared films are controlled by adjusting theacceleration voltage.
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