The temperature dependence of magnetic and transport properties of ann
ealed Co15Cu85 alloys has been studied from 2 to 300 K. It was found t
hat the magnetic property and resistivity significantly change with th
e temperature. Based on the two-current resistance model, we have calc
ulated the electron spin-mixing parameter Q(T), which explains the mag
netoresistance change with the temperature for granular Co15Cu85 alloy
s. (C) 1998 American Institute of Physics.