Ferromagnetic vs. spin glass behavior in amorphous Fe-Ni based alloys
- 1 March 1981
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (3) , 1741-1743
- https://doi.org/10.1063/1.329698
Abstract
Our recent measurements on amorphous (FexNi1−x)75P16B6Al3 alloys yielded the magnetic phase diagram (T vs. x). For xc (xc≲0.17) paramagnet (PM) to spin glass (SG) transitions occur and for 0.4≳x≳xc, cooling produces a PM to ferromagnet transition followed, at lower T, by a FM‐SG transition. We report low field ac susceptibility measurements on alloys for x in the neighborhood of xc. Application of a constant magnetic field (Ba) produces two peaks in χac(T) which mark the PM‐FM and FM‐SG transition temperatures. We obtain phase diagrams in the T vs. Ba plane, compare them to our numerical calculations based on recent theory, and infer the presence of large magnetic clusters for x≃xc.This publication has 6 references indexed in Scilit:
- Magnetic phase diagram of amorphous (FexNil-x)75P16B6A
l 3 alloysSolid State Communications, 1980 - Differential susceptibility of spin glass - ferromagnetic systemsSolid State Communications, 1978
- Evidence for a Ferromagnet—Spin-Glass Transition inPhysical Review Letters, 1978
- Spin glasses — recent experiments and systemsJournal of Magnetism and Magnetic Materials, 1978
- ac susceptibility of the ferromagnetic phase of thesystemPhysical Review B, 1978
- Solvable Model of a Spin-GlassPhysical Review Letters, 1975