Abstract
The influence of Au interlayer on the out-of-plane magnetic anisotropy of Au/Co/Au/MgO/Au heterostructures with ultra-thin Co wedge-shaped film was investigated by means of ferromagnetic resonance. It was found that introduction of a single Au monolayer enhances the surface anisotropy of the Co/MgO interface. An occurrence of a large perpendicular anisotropy with respect to the Co overlayer suggests that the largest contribution to the interface anisotropy energy originates from the Au/Co interface as a result of strong Au and Co orbitals hybridization.
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