The dependence of the uniaxial magnetic anisotropy in evaporated films on the angle of incidence

The method of local ferromagnetic resonance and direct torsional measurements were used to measure the dependence of the magnetic anisotropy in permalloy films on the angle of incidence in a broad range of such angles. It was found that this dependence is not monotonous and that at larger angles of incidence the easy axis of magnetization is rotated. An interpretation of this phenomenon is proposed.

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In conclusion the authors wish to thank J. Grolmus for performing some of the measurements, members of the mechanics workshop of the Institute of Physics, Czechoslovak Academy of Sciences, for carefully preparing the apparatus, and particularly K. Schaffner for accurately making the resonance cavity. We thank J. Kaczér and V. Janovec for carefully reading this paper and for a number of valuable remarks.