Strong tailoring magnetocaloric effect in highly (001)-oriented La0.7Sr0.3MnO3 thin films

Abstract

In this work, we simulated the dependence of magnetization versus temperature for highly (001)-oriented La0.7Sr0.3MnO3 (LSM) thin film prepared under several oxygen growth pressures to predict magnetocaloric effect (MCE). The results reveal that MCE of highly (001)-oriented LSM thin films is strongly tunable with oxygen growth pressure during preparation. Furthermore, the MCE of these films is enhanced with increasing oxygen growth pressure during preparation. The comparison of MCE parameters for (001)-oriented LSM thin films and some published works has been done, showing that these films are considerably larger and comparable with some MCE parameters of these published works. It is suggested that (001)-oriented LSM thin films can be used as a function material of MR that cools at cryogenic and room temperatures.