Properties of spin-polarized Pt in magneto-optical Co/Pt multilayered films - art. no. 144402

The magneto-optical and optical properties of the Co/Pt multilayered films (MLF) with a nearly constant Pt sublayer thickness and variable Co sublayer thickness, as well as pure Co and Pt, and Co0.51Pt0.49 alloy films have be en investigated in the 1.1-4.7-eV energy range experimentally and by solvin g the multireflection task for various models of MLF. The comparison betwee n experimental and computer-simulated optical properties of the Co/Pt MLF a llowed us to evaluate the thickness of the interfacial regions with the all oyed components. The diagonal and off-diagonal components of the optical co nductivity tensor were calculated for the spin-polarized Pt layers in the C o/Pt MLF as well as for the pure Co and Co0.51Pt0.49 alloy films, and the w hole Co/Pt MLF. It was experimentally shown that the structural fcc-L1(0) t ransformation in the Co0.51Pt0.49 alloy film caused by an annealing at 610 K for 240 min leads to significant changes in the optical and magneto-optic al properties of alloy.