Abstract

We propose a simple physical model, based on the occurrence of mixed anisotropies (rod and plate-like shape anisotropies), justified from experimental structural evidences, to explain the behaviour of magnetic anisotropy in oblique-deposited thin films. From this model the common features observed in polycrystalline thin films for high incidence angles, may be qualitatively explained. In particular the switch from positive to negative in-plane component of magnetic anisotropy at α ≈ 70° is fully established. Moreover, the in-plane and off-plane components of anisotropy may be related through a phenomenological packing parameter closely connected with structural observations.

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