Title :
Magnetic properties of Fe-Co nitride thin films. II
Author :
Takahashi, S. ; Kume, M. ; Matsuura, K.
Author_Institution :
Sanyo Electr. Co. Ltd., Osaka, Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
For pt.I see ibid., vol.23, p.3630 (1987). The magnetic properties of Fe-Co nitride thin films prepared by the IVD (ion-assisted vapor deposition) method with normal incidence of metal vapor to the substrate were investigated. It was shown that a suitable amount of Co added to the Fe-N films could improve the perpendicular magnetic properties. The highest Hk and Hc⊥, 4.2 kOe and 600 Oe, respectively, were obtained for a Co addition of nearly 25 at.%. The improvement could be attributed to the change of the distribution of nitride phases inside each column, which would have an effect on the magnetic separation of the ferromagnetic Fe-Co alloy phase from neighboring phases. The saturation magnetization changed with the Co addition, roughly following the Slater-Pauling curve. This was attributable to the change of magnetic moment in the Fe-Co alloy cluster
Keywords :
cobalt compounds; ferromagnetic properties of substances; iron compounds; magnetic moments; magnetic thin films; magnetisation; vapour deposited coatings; Co addition; Fe-Co alloy cluster; Fe-Co nitride thin films; FeCoN; Slater-Pauling curve; ferromagnetic Fe-Co alloy phase; ion-assisted vapor deposition; magnetic moment; magnetic separation; nitride phase distribution; normal incidence; perpendicular magnetic properties; saturation magnetization; Anisotropic magnetoresistance; Iron; Magnetic films; Magnetic properties; Magnetic separation; Nitrogen; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Saturation magnetization; Substrates;
Journal_Title :
Magnetics, IEEE Transactions on
