TRANSPORT STUDIES ON RELAXATION BEHAVIOR IN SPIN-GLASS PHASE OF ITINERANT MAGNETIC INTERCALATE FEXTIS2

Hall resistivity rho-H and magnetoresistance DELTA-rho/rho-0 in the spin-glass phase of a 3d transition-metal intercalation compound Fe(x)TiS2 (x = 0.20) have been measured over the temperature range 1.5-4.2 K and the time range 0.1-1000 s under pulsed magnetic fields up to 16 T. The rho-H-H and DELTA-rho/rho-0-H curves show a hysteresis corresponding to the magnetization curve, and these quantities decay with time t after the pulsed field is switched off, obeying the algebraic dependence or power-law of the form, rho-H = At(-m) and \DELTA-rho/rho-0\ = Bt(-n), where the exponents m and n are found to be temperature dependent, in good agreement with those found for other spin-glass systems.