Modeling and simulation of precursor diamagnetism in high critical temperature cuprates

In this work, it is developed a model to study the precursor diamagnetic response of a superconductor that is submitted to temperatures well above its critical temperature Tc. This approach is based on the Critical State Model that takes into account the effect of an applied magnetic field and a dependence of the average critical current density on the temperature of the sample. The results on the anomalous diamagnetic response are in good quantitative agreement with the precursor diamagnetism measurements. Modeling such phenomenon may be important to the understanding of the pseudogap region for High-Tc cuprates as well as to provide computational tools to any application using the magnetization near the critical temperature.