Pressure effect on the Curie temperature in dilute ferromagnetic alloys
- 1 April 1980
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 10 (4) , 721-728
- https://doi.org/10.1088/0305-4608/10/4/023
Abstract
The pressure dependence of the Curie temperature dTC/dP in dilute transition metal alloys and rare earth Co2 compounds is calculated in the combined model of localised spins and itinerant d electrons. It is found that dTC/dP varies as -TC at low TC and this result agrees qualitatively with many experimental results in dilute transition metal alloys. The calculated values of d ln TC/d ln V for Pd-Fe, Pd-Co, Pd-Ni, Pt-Fe and Pt-Co alloys and for the GdCo2 compound are compared with the experimental results. The calculated values of d ln TC/d ln V for Pd-Fe alloys agree well with the experimental values, which show a maximum at about 60K. The calculated results predict that there also exists a maximum in the experimental values of d ln TC/d ln V for (Gd-Y)Co2 compounds and Pd-Co alloys.Keywords
This publication has 27 references indexed in Scilit:
- Magnetovolume effects in transition metal alloys near the critical composition for ferromagnetismJournal of Magnetism and Magnetic Materials, 1979
- Calculation of Volume Paramagnetostriction for Pd–Rh, Ni–Rh and Pt–Ni AlloysJournal of the Physics Society Japan, 1977
- Critical pressure effects in PdNi alloysJournal of Physics F: Metal Physics, 1976
- Giant moments and pressure effects in Pd-Ni alloysJournal of Physics F: Metal Physics, 1975
- Magneto-volume effects in rare-earth transition metal intermetallicsIEEE Transactions on Magnetics, 1974
- Metallic Alloys and Exchange-Enhanced Paramagnetism. Application to Rare-Earth—Cobalt AlloysPhysical Review B, 1970
- Strain dependence of exchange interactions in dilute PdFe alloys and in pure PdSolid State Communications, 1968
- Theory of the magnetic properties of dilute palladium-iron alloysProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967
- Interaction in Transition MetalsPhysical Review B, 1967
- The thermal and magnetic properties of some transition element alloysProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1960