Analysis of the hysteresis curves of a laser-ablated YBCO thin film via an exponential critical state model

Abstract Our experimental data show that the magnetization of a laser-ablated YBCO thin film can be properly devided into reversible and irreversible parts. The time dependent irreversible magnetization follows flux-creep theory. By using the exponential critical state model, the irreversible magnetization of the hysteresis curves are perfectly quantitatively analyzed.