RELAXATION STUDIES OF THE REMANENT MAGNETIZATION IN THE SPIN GLASS LIKE STATE OF AMORPHOUS Fe90 ( ZrxScy)10 ALLOYS

Field cooled (FC) and zero field cooled (ZFC) magnetization measurements have been performed on amorphous Fe90 (ZrxScy)10 (x = 100, 80, 60, 50, 20, 0 at%) alloys. The time dependence of the thermoremanent magnetization has been studied up to 5 x 105 s with a SQUID-magnetometer. Depending on the ratio of the Zr and Sc concentration different relaxation behavior in the low temperature SG-phase is observed.