Microwave spectroscopy and magnetization measurements of flux trapping and hysteresis in YBa2Cu3O7−δ

Abstract

Microwave spectroscopic measurements at 9.2 GHz on a superconducting sample of YBa2Cu3O7−δ have established the occurrence of flux trapping and hysteresis associated with a low-field signal. The position of the signal peak is related to the field at which an abrupt change in the slope of the magnetization curve is observed. The data are consistent with a superconducting glass model.