Abstract
Measurements of the low field static magnetization and thermoremanent decay of a Cr-17 at. % Fe spin glass and a re-entrant Cr-22 at. % Fe ferromagnet are presented. The thermoremanent relaxation within the pure spin glass phase exhibits nonequilibrium effects and is describable by the product of a power law and a stretched exponential superposed on a constant term. In the ferromagnet, a crossover is observed between two distinct dynamic regimes: a high temperature, power law regime, with negligible aging effects, which is essentially coincident with the ferromagnetic phase, and a low temperature, stretched exponential regime, with nonequilibrium, age-dependent behavior, which is correlated with the re-entrant phase.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
