CURIE TEMPERATURE, MAGNETIC MOMENT, AND HIGH-FIELD SUSCEPTIBILITY OF AMORPHOUS Fe90-xSixZr10 ALLOYS

摘要

The magnetization curves at 1.5K and thermomagnetization curves in the fields of about 450e for amorphous Fe_(90-x)Si_(x)Zr_(10)(x=0,4,7 and 10)alloys prepared by the drum spinning technique are measured with an eztracting sample magnetometer.At low Si concentration the amorphous Fe_(90-x)Si_(x)Zr_(10) alloys exhibit a large value of the high-field susceptibility,but the average magnetic moment per Fe atomμFe,and the Curie temperature,Tc,are quite small,compared with amorphous Fe_(87-x)Si_(x)B_(13) alloys.This unusual behavior could be explained in terms of the presence of the antiferromagnetic state.