Short range ordering in electrochemically prepared Fe−P amorphous alloys

Mössbauer and XRD study of pulse plated Fe–P and Fe–Ni thin layers

“…Consequently, the Mössbauer spectroscopy together with the XRD reveal that it was succeeded to prepare an amorphous Fe-P alloy layer using pulse plating method. The hyperfine field value of pulse plated Fe-9 wt.% P alloy from group 1 is smaller than that observed previously [11,12], indicating differences in the short range ordering due to the different preparation routes.…”

“…The asymmetry of the third and fourth line requires to involve new components (at least a doublet) in the decomposition of the spectra. The change in the average hyperfine field, belonging to the ferromagnetic amorphous Fe-P phase, compared to that of sample from group 1 can be connected with the change of the P content to 6.7 wt.% [11] and with the change in the chemical short range order. The doublet can be assigned to the paramagnetic amorphous Fe-P phase.…”

“…This spectrum can be considered as a superposition of a large number of sextets having different hyperfine parameters due to iron atoms being in slightly different surroundings in the amorphous alloy. The average Mössbauer parameters, shown in Table I, roughly correspond to those of Fe-P amorphous alloys prepared by dc electrodeposition or rapid quenching in the corresponding composition range [11,12]. Consequently, the Mössbauer spectroscopy together with the XRD reveal that it was succeeded to prepare an amorphous Fe-P alloy layer using pulse plating method.…”

“…The P content of this sample was found to be 9.0±0.1 wt.%. At this composition the formation of the amorphous phase can also be obtained both with rapid quenching and also by conventional electrodeposition methods [11,12].…”