Abstract
Temperature dependence of ac-susceptibility including the higher-harmonic terms was investigated for sintered specimen of high-Tc oxide superconductor. An intrinsic granular component and an intergranular coupling component were observed in the real part of fundamental susceptibility. In the latter component region, the imaginary part of fundamental susceptibility formed a single peak, and real and imaginary parts of higher-harmonic terms also had finite values. The results observed were coinside with those computed on the basis of the Kim-Anderson model supposed that the constant Be have a finite value. Physical meaning and fitness of the model were discussed.
