Complex Susceptibility of Single Crystal YBa₂Cu₃O_7-x (II)

Abstract

Higher harmonics of complex susceptibility were measured for single-crystal YBa₂Cu₃O_7-x, bulk specimen and thin films. For the bulk specimen, any higher harmonics were not observed. This result is consistent with the Maxwell and Strongin model. In contrast with this, for the thin film specimen placed in transverse magnetic field, third harmonics have a finite value in the transition region. This suggests the existence of nonlinear flux motion going into and out of the specimen.