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We present a detailed study of the microstructural, electrical and magnetic properties of Fe 35 Co 65 thin films deposited by thermal evaporation using nanocrystalline mixture. The nanocrystalline Fe 35 Co 65 powder was prepared by mechanical alloying process using high energy ball milling and then carefully studied. Good homogeneity, purity and stoichiometry were demonstrated in the powder composed of 25 nm mean crystallite size. Microstuctural analysis of Fe 35 Co 65 thin films ranging from 9 to 50 nm deposited on Si (001) shows that the stoichiometry is conserved over the whole thickness range and that (110) texture forms as the film thickness increases. Our work finally demonstrates that high saturation magnetization, low coercivity and high electrical resistivity FeCo thin films can be achieved by thermal evaporation from properly set mechanical alloying powder.

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