Abstract
X-ray diffraction, magnetization and electrical resistivity have been measured for Fe1-xWx alloys sputter deposited on water-cooled and liquid-nitrogen-cooled substrates. A single bcc phase appears for 0<x<0.2 and 0.7<x<1.0, while an amorphous phase for 0.2<x<0.6, being independent of the substrate temperature. The bcc phase is ferromagnetic for x<0.8, while the amorphous phase is paramagnetic even at 4.2 K. The magnetic moments of Fe atoms in the Fe-rich bcc alloys are larger than that of pure Fe. The residual resistivity of the amorphous alloys is larger than that of the bcc alloys, being smaller than 1.5 µΩm, and the temperature coefficient of resistivity is slightly positive for the whole concentration.
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