Effect of pressure on the magnetocrystalline anisotropy of (ErxR1-x)2Fe14B intermetallics
- 30 November 1992
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 4 (48) , 9721-9734
- https://doi.org/10.1088/0953-8984/4/48/024
Abstract
A systematic study of the effect of pressure up to 1 GPa on the spin reorientation transition (SRT) phenomena has been performed on several series of pseudoternary compounds (ErxR1-x)2Fe14B for R identical to Nd, Gd, Dy and Y using a low-field AC susceptibility technique. The variation in the SRT temperature TSR under pressure has been used as an indication of the effect of the pressure on the crystal electric field (CEF) at the rare-earth ion site. The authors have observed that the pressure effect on the Er2Fe14B compound ( Delta TSR/ Delta p=-20 K GPa-1) was not affected by the substitution of Er by Gd and Y ions. A completely different high-pressure behaviour has been observed for the (ErxDy1-x)2Fe14B and (ErxNd1-x)2Fe14B compounds, in which the variation in TSR under pressure decreases for increasing content of Dy and Nd. This different behaviour has been attributed to the strong influence of pressure on the CEF interactions. Using these results the authors have determined the variation in the CEF parameters under applied pressure.Keywords
This publication has 28 references indexed in Scilit:
- High field magnetostriction and magnetic thermal expansion of RE2Fe14B hard intermetallicsJournal of Magnetism and Magnetic Materials, 1992
- Spin reorientations in (Er, Nd)2Fe14BJournal of Magnetism and Magnetic Materials, 1992
- 3d-5d band magnetism in rare earth-transition metal intermetallics: total and partial magnetic moments of the RFe2(R=Gd-Yb) Laves phase compoundsJournal of Physics: Condensed Matter, 1991
- Spin reorientation phenomena in RFe10V2 intermetallic compounds (RDy and Nd).Solid State Communications, 1990
- Critical behavior in spin-reorientation phase transitions: (B (R=Nd, Dy) magnetsPhysical Review B, 1989
- Anisotropic rare earth-cobalt exchange interactions in RCo5 intermetallicsJournal of Magnetism and Magnetic Materials, 1987
- Evidence in rare-earth (R)–transition metal (M) intermetallics for a systematic dependence of R-M exchange interactions on the nature of the R atomJournal of Applied Physics, 1987
- 3d magnetism in R2Fe14B compoundsJournal of Magnetism and Magnetic Materials, 1987
- Invar effect in R2Fe14B compounds (R La, Ce, Nd, Sm, Gd, Er)Journal of the Less Common Metals, 1986
- Indirect exchange for rare earths in metalsJournal of Physics F: Metal Physics, 1972