Magnetic properties of amorphous rare-earth–cobalt alloys
- 1 May 1980
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 51 (5) , 2795-2798
- https://doi.org/10.1063/1.327944
Abstract
The magnetic properties of several amorphous alloys prepared by melt spinning have been studied. These comprise alloys of the series Tb1−xCox, Y1−xCox (0.25⩽x⩽0.60), and R69Co31 (R=La, Nd, Sm, Gd, Tb, Dy, Ho, and Er). Most of the alloys in which the R component has an orbital momentum were found to exhibit large intrinsic coercive forces at low temperatures. The thermomagnetic history effects studied on several of these alloys have been interpreted in terms of a thermally activated magnetization process. The magnetic ordering temperatures of the series R69Co31 scale to the deGennes factor (g−1)2J(J+1) only approximatley. The systematic deviations suggest that the indirect magnetic coupling between the localized 4 f moments involves a term proportional to Si⋅Lj in addition to the main term, proportional to Si⋅Sj .This publication has 12 references indexed in Scilit:
- Intermetallic compounds of rare earths and non-magnetic metalsReports on Progress in Physics, 1979
- Magnetic ordering in amorphous Nd-Co, Gd-Co and Er-Co alloysJournal of Applied Physics, 1978
- Magnetic ordering and local random anisotropy in dilute magnetic glassesJournal of Applied Physics, 1978
- Intermetallic compounds of rare-earth and 3d transition metalsReports on Progress in Physics, 1977
- Crystalline and amorphous rare-earth transition metal alloysPhysica B+C, 1977
- Model predictions for the enthalpy of formation of transition metal alloysCalphad, 1977
- Amorphous ferromagnetic Ag-() alloysPhysical Review B, 1975
- Domain Walls in Ferromagnetic Dy and TbJournal of Applied Physics, 1971
- Modèle de fonction aléatoire de couverture applicable aux phénomènes de filiation à base poissonnienneJournal de Physique, 1971
- Indirect exchange via spin-orbit coupled statesSolid State Communications, 1969