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Mössbauer Spectroscopic Study of R 3 Fe 29–x Cr x and R 3 Fe 29—x Cr x H y (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy)
Author(s) -
Nagamine L.C.C.M.,
Rechenberg H.R.,
Han XiuFeng,
BaggioSaitovitch E.,
Souza Azevedo I.,
Lin LanYing
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200010)221:2<767::aid-pssb767>3.0.co;2-#
Subject(s) - hyperfine structure , mössbauer spectroscopy , rare earth , magnetic moment , mössbauer effect , spectral line , crystallography , materials science , analytical chemistry (journal) , chemistry , atomic physics , physics , condensed matter physics , metallurgy , astronomy , chromatography
57 Fe Mössbauer spectra for the series of R 3 Fe 29— x Cr x (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy) compounds and their hydrides have been measured at 4.2 K. The weighted average hyperfine field at the Fe sites was separated into a 3d‐electron contribution, proportional to the average Fe moment, and a transferred contribution due to rare earth moments. The latter was found to increase with the rare earth effective spin ( g J — 1) J . Hyperfine fields in the hydrides were only slightly larger than in the corresponding alloys.