Time decay of the saturated remanent magnetization in a metallic spin glass

Abstract
The time decay of the saturated remanent magnetization (Ms) has been studied in the amorphous metallic spin glass (Fe0.15 Ni0.85 )75P B616 Al3. This relaxation, which by nature is different from the zero-field equilibrium relaxation, shows at low temperatures (T/TgTg, the experimental time decay can be described by a power law times a stretched exponential functional form: Ms=M0 tm exp[-(t/τp )1n]. .AE