Organic
semiconductor/ferromagnetic bilayer thin films can exhibit
novel properties due to the formation of spinterface at the interface.
Buckminsterfullerene (C60) has been shown to exhibit ferromagnetism
at the interface when it is placed next to a ferromagnet (FM) such
as Fe or Co. Formation of a spinterface occurs due to the orbital
hybridization and spin-polarized charge transfer at the interface.
In this work, we have demonstrated that one can enhance the magnetic
anisotropy of the low Gilbert damping alloy CoFeB thin film by introducing
a C60 layer. We have shown that anisotropy increases by
increasing the thickness of C60, which might be a result
of the formation of a spinterface. However, the magnetic domain structure
remains the same in the bilayer samples as compared to that in the
reference CoFeB film.