Magnetic and magnetooptical properties of Fe/Pt and Fe/Pt/Fe thin-film magnetic structures

Results of a study of magnetic and magnetooptical properties of Fe/Pt doubl e-layer and Fe/Pt/Fe three-layer thin-film magnetic structures are presente d. A strong effect of the Pt layer on magnetic properties of the studied sa mples was revealed. It was established that the saturation field of three-l ayer magnetic structures has an oscillating magnitude with varying Pt layer thickness, and the oscillation period is a function of the Fe layer thickn ess. The data obtained are explained by the presence of exchange interactio n between the Fe layers via the Pt layer. A strong effect of Pt on spectral dependences of the equatorial Kerr effect in the thin-film structures unde r study is revealed. (C) 2000 MAIK "Nauka/Interperiodica".