Abstract
Abstract Nanogranular magnetic films were produced by the specially designed UHV plasma-jet system with DC hollow-cathode discharge. We investigated the properties of these ferromagnetic FeCo-AlN films. The samples were studied by nuclear magnetic resonance, Mossbauer spectroscopy, and transmission electron microscopy. The films are composed of nanoparticles of cubic FeCo, 2–10 nm in size, embedded in amorphous matrix containing Al, N and O. The Mossbauer spectra indicate that the orientation of local magnetic moments on the surface is random for the sample with 1:1 Fe/Co ratio, while the magnetization lays in the plane of the layer for samples with Fe/Co smaller than 1 (0.91–0.95).
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