Structure and magnetic properties of Fe-M (M=Ti, Zr Hf, Nb or Ta) alloy films produced by rf sputtering haye been investigated in Fe-rich compositional ranges below 10 at%M. These alloy films have a nonequilibrium bcc phase with lattice parameters larger than that of pure Fe. They exhibit high saturation magnetization and soft magnetic properties. In particular, the bcc Fe 94 Zr 6 film annealed at 673 K for 1 h exhibits a saturation magnetization of 2 T and a magnetostriction less than 1×10 -6 .
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Kataoka et al. (1989) studied this question.
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