Thickness- and morphology dependence of the optical and magneto-optical properties of CrPt3 films

Abstract The optical and magneto-optical properties of epitaxial films grown by MBE on (0 0 1)-oriented SrTiO3 substrates have been investigated. Wedge shaped as well as plane-parallel films were prepared to differentiate between incoherent and coherent interference effects. It is shown that the morphology influences strongly the normal optical constants and less the magneto-optical Kerr signal, while coherent interference effects affect the Kerr signal as much. Quantitative fits using effective medium and matrix models are presented.