Magnetic Properties and Magnetic Anisotropy Dispersion of Fe/Ni–Fe Multilayered Films

Magnetic Properties and Magnetic Anisotropy Dispersion of Fe/Ni–Fe Multilayered Films

Fe/Ni–Fe multilayered films are formed by the ion beam sputtering method. Their magnetic properties and film structures are examined. As the period of the Fe/Ni–Fe multilayered films is reduced, the Fe crystallite diameter and the magnetic anisotropy dispersion become small and the soft magnetic pro...

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Veröffentlicht in:Japanese Journal of Applied Physics 1988-06, Vol.27 (6R), p.937-941
Hauptverfasser: Nakatani, Ryoichi, Kobayashi, Toshio, Ootomo, Shigekazu, Kumasaka, Noriyuki
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container_end_page 941
container_issue 6R
container_start_page 937
container_title Japanese Journal of Applied Physics
container_volume 27
creator Nakatani, Ryoichi
Kobayashi, Toshio
Ootomo, Shigekazu
Kumasaka, Noriyuki
description Fe/Ni–Fe multilayered films are formed by the ion beam sputtering method. Their magnetic properties and film structures are examined. As the period of the Fe/Ni–Fe multilayered films is reduced, the Fe crystallite diameter and the magnetic anisotropy dispersion become small and the soft magnetic properties are improved. The Fe/Ni–Fe multilayered film, whose period is 25 nm, displays a coercive force of 90 A/m, a relative permeability of 1900, a saturation magnetic flux density of 1.9 T, and a magnetostriction constant of 8×10 -7 . It is thought that the reduction of magnetic anisotropy dispersion improves the soft magnetic properties of Fe/Ni–Fe multilayered films.
doi_str_mv 10.1143/JJAP.27.937
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title Magnetic Properties and Magnetic Anisotropy Dispersion of Fe/Ni–Fe Multilayered Films
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