Mossbauer spectroscopic study of R3Fe29-xCrx and R3Fe29-xCrxH,(y)(R = Y, Ce, Nd, Sm, Gd, Tb, and Dy)

Authors
Nagamine, LCCM Rechenberg, HR Han, XF Baggio-Saitovitch, E Azevedo, IS Lin, LY
Citation
Lccm. Nagamine et al., Mossbauer spectroscopic study of R3Fe29-xCrx and R3Fe29-xCrxH,(y)(R = Y, Ce, Nd, Sm, Gd, Tb, and Dy), PHYS ST S-B, 221(2), 2000, pp. 767-775
Citations number
36
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
03701972 → ACNP
Volume
221
Issue
2
Year of publication
2000
Pages
767 - 775
Database
ISI
SICI code
0370-1972(200010)221:2<767:MSSORA>2.0.ZU;2-K
Abstract
Fe-57 Mossbauer spectra for the series of R3Fe29-xCrx (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-e lectron contribution, proportional to the average Fe moment, and a transfer red contribution due to rare earth moments. The latter was found to increas e with the rare earth effective spin (g(J) - 1) J. Hyperfine fields in the hydrides were only slightly larger than in the corresponding alloys.