Abstract
Mössbauer spectra were obtained at 290 K and 4.2 K for the metastable bcc and amorphous phases of the Fe1−xTix sputtered alloys. For x≤0.18 (the metastable bcc phase region), the ferromagnetic sextet was observed at 290 K. A wide hyperfine field distribution and a small hyperfine field component, which appears with an increase in x, imply that the magnetic moment of Fe atoms is dependent on the near neighbor atomic configuration of nonmagnetic Ti atoms. For x≥0.22 (the amorphous phase region), a considerably broadened sextet was observed at 4.2 K. The average value of the hyperfine field for the amorphous alloy with x=0.32 is comparable to that for the Laves phase, TiFe2. At 290 K, where the amorphous phase is paramagnetic, a quadrupole splitting was detected and its average magnitude is also comparable to that of the Laves phase.
