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С. М. Рябченко, А. А. Тимофеев, В. М. Калита, А. Ф. Лозенко, П. А. Троценко, О. В. Стогней*, А. В. Ситников*
«Проявление перпендикулярной анизотропии в наногранулярных ферромагнитных плёнках.»
093–106 (2011)

PACS numbers: 75.30.Gw, 75.50.Tt, 75.70.-i, 75.75.-c, 76.50.+g, 85.75.Bb

Magnetic and magnetoresonance properties of the nanogranular ferromagnetic Cox(Al2O3)1?x films are investigated in a wide range of the cobalt concentration (x) within the nanocompo-site. The films with the nominal thickness of 5 ?m were depos-ited on the glass ceramics substrates by the ion beam-assisted deposition technique. The results of the magnetostatic inves-tigation manifest a presence of the perpendicular uniaxial anisotropy with the easy axis directed along the normal of the films. The last one is conserved for all the samples with a volume fraction of the cobalt below the percolation threshold. The temperature-variation investigations of the magnetostatic properties of the above-mentioned films show that the perpen-dicular anisotropy is conditioned by the oriented anisotropy of the granules. Ferromagnetic resonance measurements prove a presence of the perpendicular anisotropy. Features of ferro-magnetic resonance in perpendicular magnetic field are re-vealed in the films with perpendicular anisotropy of granules.