Magnetic properties of Fe-Co nitride thin films. II

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 H/sub k/ and H/sub c perpendicular to /, 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.<
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