In the present study, the single layer Co₉₀Fe₁₀ and X/Co₉₀Fe₁₀ (X = Cu, Cr, Au, Ni₈₀Fe₂₀) double layer films were investigated. Films were fabricated by DC magnetron sputtering at room temperature on Si substrates. In order to improve the soft magnetic properties of CoFe films, four different underlayers were examined. The coercivity values of the films were obtained by using a laboratory design magneto-optic Kerr effect (MOKE) magnetometry. Magnetic force microscopy and x-ray diffraction results show that the crystalline structure and magnetic domains of CoFe films are sensitive to the initial layer. It was seen that the soft magnetic properties of CoFe films were improved with underlayers. Particularly, the Au underlayer was effective in reducing coercivity H_c from 37 to 5 Oe.

Keywords: CoFe alloys, sputtered films, soft magnetic materials
PACS: 75.50.Bb, 75.50.Ss, 75.70.-i

PASLUOKSNIO ĮTAKA Co₉₀Fe₁₀ PLONŲJŲ PLĖVELIŲ SANDARAI IR MAGNETINĖMS SAVYBĖMS
S. Cakmaktepe, M.I. Coskun, A. Yildiz
Kiliso Gruodžio 7-osios universitetas, Kilisas, Turkija

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