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Magnetic Anisotropy and Columnar Structure of Fe Films Made by Simultaneous Evaporation with Oblique Incidence from Two Sources

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4 Author(s)
Keitoku, S. ; Hiroshima Women''s Unversity. ; Negishi, S. ; Tsuchitori, I. ; Goto, M.

Fe film samples were prepared by oblique simultaneous evaporation from two sources with an angle Ø between the two planes of incidence, the magnetic anisotropy in the film plane was measured, and the columnar structure was observed by SEM. For samples prepared with Ø¿45°, the easy axis of anisotropy and columnar grain alignment are in the direction perpendicular to the plane bisecting the two planes of incidence; for samples with Ø¿45°, they are parallel to the bisecting plane. A mechanism of anisotropic arrangement of the columnar grains based on a self-shadowing effect is proposed. The magnetic anisotropy calculated from the columnar structure assuming such a mechanism was in fairly good agreement with the measured anisotropy.

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Magnetics in Japan, IEEE Translation Journal on  (Volume:5 ,  Issue: 12 )