TEMPERATURE-DEPENDENCE OF THE MAGNETIZATION FOR AMORPHOUS GD65CO35

We present detailed investigation of the temperature dependence of the magnetization for amorphous Gd65Co35, below 340 K in magnetic fields up to 5.27 T. The paramagnetic susceptibility follows the Curie-Weiss law. We experimentally find that T-200+/-0.05 is the functional form o f another dominant contribution to the temperature dependence of the m agnetization than the spin wave term T-3/2. These T-2 and T-3/2 terms are interpreted as longitudinal and transverse fluctuations in the loc al moment derived from polarization of the spin bands. The longitudina l fluctuation comes from itinerant character of 3d electrons in Co ato ms.