Abstract
Evaporative deposition at oblique incidence is shown to enhance the magnetic anisotropy of an Fe 20Ni 80 magnetic film and induce magnetic anisotropy in an overlying, strongly isotropic Fe 70Co 30 film. This deposition method for the formation of an underlayer of several lattice parameters in thickness and semi-hard overlayer of a few thousands Angstroms in thickness achieves a significant change in the magnetization process and strong suppression of the coercive forces of Fe 70Co 30 in the hard magnetization direction. Soft magnetization of the Fe 70Co 30 overlayer is not achieved when one of the layers is deposited at oblique incidence. It is anticipated that shape magnetic anisotropy is responsible in part for the magnetic anisotropy induced in both in Fe 20Ni 80 under- and Fe 70Co 30 overlayer by oblique incidence evaporation.
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