Abstract
In this work a practical method of fitting complex multiphase Mossbauer
effect spectra is proposed. The task is simplified imposing specific
restrictions to the analysing functions, which are appropriate for cases
where the component phases spectra do not change substantially during
the process under study. The ME spectra can be analysed using the phases
subspectra, by defining only a reduced number of parameters. The
constraints are equivalent to assume a Doppler velocity transformation v' = (v - delta (m))B-m0/B-m + delta (m0) for each phase, where delta
(m) and B-m are fitting parameters containing information on the phase
mean isomer shift and hyperfine field and delta (m0) and B-m0 their
reference values. In this manner physically meaningful results are easy
to obtain. The idea was applied to partially nitrogenated R(2)Fe(17)Nx (R = Sm and Y) and partially hydrogen-decomposed Nd-Fe-B materials.
Users
Please
log in to take part in the discussion (add own reviews or comments).