Magnetic and crystallographic characteristics of rare-earth ternary carbides derived from R2Fe17 compounds

✍ Scribed by X.-P. Zhong; R.J. Radwański; F.R. de Boer; T.H. Jacobs; K.H.J. Buschow

• Book ID: 113315229
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 542 KB
• Volume: 86
• Category: Article
• ISSN: 0304-8853
• DOI: 10.1016/0304-8853(90)90141-c

✦ Synopsis

We have studied the magnetic properties of the rhombohedral R2Fet~C compounds with R = Ce, Pr, Srn, Gd, Tb, Dy, Ho or Y and the hexagonal R2Fel7C compounds with R = Er, Tm or Lu. For all compounds the lattice parameters were determined. The Curie temperatures were found to be considerably enhanced with respect ~ the C-free counterparts. The magnetic anisotropy of the R2Fe17C compounds was studied on magnetically aligned powders in field strengths up to 35 T. The rare-earth sublattice anisotropy is much stronger in R2Fe17C than in R2Fe17, leading go an easy c-axis anisotropy in Sm2FelTC even at room temperature. The Curie temperatures and the high field data obtained at 4.2 K were analysed in terms of a mean field model.