The magnetic and magneto-optical properties of nanocrystalline Fe/Zr and Fe/Zr/Fe thin-film systems have been studied using the magneto-optical method. The strong effect of Zr layer thickness t$_{Zr}$ on the magnetic properties of Fe/Zr samples was discovered. It was found that the value of the saturation field of the Fe/Zr/Fe systems oscillates as a function of t$_{Zr}$, which is explained by the oscillating character of the exchange interaction between ferromagnetic layers via a Zr spacer with the change in t$_{Zr}$. It was established that the values of the transverse Kerr effect depend on the thicknesses of both magnetic and nonmagnetic layers.
78.20.Ls Magneto-optical effects
$^{1}$Faculty of Physics, Moscow State University, Moscow, 119991, Russia
$^{2}$Faculty of Physics, Daugavpils University, Daugavpils, 5401, Latvia
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