Abstract
The origin of the large perpendicular magnetic anisotropy (0.5–1×10−6 erg/cm3) of Ni-polyethelene coevaporated films has been studied. It is indicated that the anisotropy can be very well explained by uniaxial anisotropy induced by the large tensile stress (1–3×1010 dyn/cm2) through the inverse magnetostrictive effect. Other factors, such as magnetocrystalline or shape anisotropy, produce little effect on the perpendicular anisotropy of the films.
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