Synthesis and magnetic properties of Pr{sub x}Ce{sub 1-x}Fe{sub 2} compounds Tang, C C; Zhan, W S; Li, Y X; Chen, D F; Du, J; Wu, G H; Li, J Y; Jia, K C [State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 (China)] 36 MATERIALS SCIENCE; ANNEALING; CERIUM ALLOYS; INTERMETALLIC COMPOUNDS; IRON ALLOYS; LATTICE PARAMETERS; LAVES PHASES; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MAGNETOSTRICTION; MOESSBAUER EFFECT; PRASEODYMIUM ALLOYS The synthesis and magnetic properties of Pr{sub x}Ce{sub 1-x}Fe{sub 2} have been investigated. The formation of Pr{sub x}Ce{sub 1-x}Fe{sub 2} is found to depend strongly on annealing temperature. Pure single-phase compound can be synthesized at ambient pressure when x{<=}0.5. The main phase of the Laves structure can still be observed up to x=0.8. The study of crystalline parameters, magnetic moments and Moessbauer spectra for single-phase Pr{sub x}Ce{sub 1-x}Fe{sub 2} is performed. Curie temperature and local Fe magnetic moment increase with the increasing Pr concentration. Extrapolating the trends the spontaneous magnetization and anisotropy constant of PrFe{sub 2} are 4.98 {mu}{sub B} fu{sup -1} and 7.3x10{sup 5} J m{sup -3} at 1.5 K, respectively. Magnetostriction increases with increasing x and the largest saturation magnetostriction, 200 ppm, is observed for x=0.5. With the increase of Pr concentration, lattice parameter and spontaneous magnetization anomalies exist in a specific range 0.2<x<0.5 that can be attributed to the change of Ce ion valence toward tetravalent. (author) Available online at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/;INIS United Kingdom 1997-11-03 English Journal Article Journal Name: Journal of Physics. Condensed Matter; Journal Volume: 9; Journal Issue: 44; Other Information: Country of input: Canada; PBD: 3 Nov 1997 Medium: X; Size: page(s) 9651-9659 https://doi.org/10.1088/0953-8984/9/44/019 [] 44 9 Journal ID: ISSN 0953-8984; JCOMEL; TRN: GB01$4384022244 GBN; EDB-01:049267 2010-12-30 20162184