MAGNETOOPTICAL AND OPTICAL-PROPERTIES OF ORDERED AND DISORDERED FE-ALALLOY-FILMS

The influence of order-disorder structural transition on the magnetic, magneto-optical, and optical properties of nearly equiatomic FeAl all oy films was investigated. The disordered state in FeAl alloy films wa s obtained by means of vapor quenching deposition onto glass substrate s cooled by liquid nitrogen. The experimental study of the magneto-opt ical and optical properties of ordered and disordered FeAl alloy films was carried out in the 0.5-5.0 eV energy range at room temperature. T he influence of the order-disorder structural transition on magnetic, magneto-optical, optical properties is discussed by using the results of first-principle calculations of the electronic structure and by the structural defect approach. (C) 1997 American Institute of Physics.