%0 Journal Article %1 WOS:000172296400006 %A Sanchez, FH %A Torres, CR %A Saccone, FD %A Ayala, A %C SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS %D 2001 %I KLUWER ACADEMIC PUBL %J HYPERFINE INTERACTIONS %K Mossbauer Nd-Fe-B R2Fe17Nx; analysis; disproportionated} hydrogen spectra {multiphase %N 1-4 %P 33-40 %R 10.1023/A:1012280512788 %T A fitting procedure for magnetic multiphase materials Mossbauer spectra %V 133 %X 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.

@article{WOS:000172296400006, 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.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS}, author = {Sanchez, FH and Torres, CR and Saccone, FD and Ayala, A}, biburl = {https://www.bibsonomy.org/bibtex/2121a3b10302e27d7ea680ebbe7d133b6/ppgfis_ufc_br}, doi = {10.1023/A:1012280512788}, interhash = {14943395168be083ee758ec5492436e6}, intrahash = {121a3b10302e27d7ea680ebbe7d133b6}, issn = {0304-3843}, journal = {HYPERFINE INTERACTIONS}, keywords = {Mossbauer Nd-Fe-B R2Fe17Nx; analysis; disproportionated} hydrogen spectra {multiphase}, note = {Conference on Nuclear Methods in Magnetism (NMM 2000), RIO DE JANEIOR, BRAZIL, AUG 02-04, 2000}, number = {1-4}, organization = {FAPERJ; CNPq; SBF; CAPES}, pages = {33-40}, publisher = {KLUWER ACADEMIC PUBL}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {A fitting procedure for magnetic multiphase materials Mossbauer spectra}, tppubtype = {article}, volume = 133, year = 2001 }