Magnetic transitions and scaling in anisotropic rare-earth glasses
- 15 April 1987
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 61 (8) , 3616-3618
- https://doi.org/10.1063/1.338690
Abstract
We report studies of the magnetic critical behavior as a function of anisotropy strength in rare-earth-rich glasses. Anisotropy is induced in Gd-Co by alloying with Tb. The system studied is Gd65−xTbxCo35 and the random magnetic anisotropy (RMA) strength may be increased by increasing x. The x=0 alloy of this series has been shown to exhibit standard critical behavior expected for a second-order phase transition. With increasing x we find deviations from this behavior due to the presence of RMA. We present detailed results for the alloy with composition x=50 at. % and show that for large enough magnetic fields the system continues to show standard ferromagnetic scaling but for low enough fields the system crosses over to a behavior describable by nonlinear scaling similar to that found in spin-glass systems.This publication has 11 references indexed in Scilit:
- Double-transition behavior induced by anisotropyPhysical Review B, 1986
- Phase-Transition Behavior in a Random-Anisotropy SystemPhysical Review Letters, 1986
- Critical Properties of a Random-Anisotropy System: A New Universality Class in Disordered Systems?Physical Review Letters, 1986
- High-field magnetization of Gd-Co amorphous alloysJournal of Magnetism and Magnetic Materials, 1986
- Magnetic transitions and scaling behavior in Gd-rich glassesPhysical Review B, 1985
- Static critical phenomena in ferromagnets with quenched disorderJournal of Magnetism and Magnetic Materials, 1985
- Random magnetism in amorphous rare-earth alloys (invited)Journal of Applied Physics, 1985
- Critical behaviour in an insulating spin glass : field expansion and scalingJournal de Physique Lettres, 1984
- Amorphous magnetic orderJournal of Applied Physics, 1978
- Anomalous magnetization of amorphous Tb, Gd, and YPhysical Review B, 1974