Formation and magnetostructural characterization of the novel ternary compound Ce sub(3)Fe sub(29-x)Mo sub(x)

Formation and magnetostructural properties of the novel ternary ferromagnetic compound Ce sub(3)Fe sub(29-x)Mo sub(x) is reported. It was obtained in alloys with nominal compositions Ce sub(3 )Fe sub(29-x)Mo sub(x) , x=1.4, 1.5, and 1.6, prepared by arc melting and annealing during three weeks at 95...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1999-01, Vol.35 (4)
Main Authors: Sanchez, J L, Salim de Amorim, H, Amaral, Jr, Domingues, PH
Format: Article
Language:English
Subjects:
Alloys
Crystal structure
Iron
Lattice parameters
Magnetic permeability
Magnetic properties
Rietveld method
Saturation (magnetic)
Online Access:Get full text
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Summary:Formation and magnetostructural properties of the novel ternary ferromagnetic compound Ce sub(3)Fe sub(29-x)Mo sub(x) is reported. It was obtained in alloys with nominal compositions Ce sub(3 )Fe sub(29-x)Mo sub(x) , x=1.4, 1.5, and 1.6, prepared by arc melting and annealing during three weeks at 950 degree C. The crystal structure was well resolved as monoclinic with space group A2/m (No 12). Quantitative phase analysis, based on the processing of the X-ray diffraction patterns by the Rietveld method, was performed. Ce sub(3 )Fe sub(29-x)Mo sub(x) is the main phase (78-72 wt.%) with lattice parameters a=10.553(1) Aa, b=8.511(1) Aa, c=9.688(1) Aa, and beta =96.78(1) degree . It coexists with Ce(Fe,Mo) sub(12) as main spurious phase. Atomic positions and mean Fe-Fe interatomic distances are reported. Temperature-dependent magnetic susceptibility shows well-defined transitions at 7 and 115 degree C, which correspond to the 3:29 and 1:12 phases, respectively. Saturation magnetization at 4.2 K is 123 emu/g
ISSN:0018-9464
DOI:10.1109/20.774188