Large increase of Curie temperature in (110)-oriented La0.7Sr0.3MnO3 films

Abstract From the perspectives of scientific researches and practical applications, it is desirable to explore high operating temperature ferromagnetic films. The effect of biaxial strain on magnetic properties of (110)-oriented La 0.7 Sr 0.3 MnO 3 films was studied. High quality La 0.7 Sr 0.3 MnO 3 films were grown on (110)-oriented perovskite single crystal substrates using pulsed laser deposition, varying substrate-induced misfit strains from − 2.27–0.75%. A remarkable enhancement of Curie temperature has been achieved for (110)-oriented La 0.7 Sr 0.3 MnO 3 films clamped with small misfit strains (i.e., grown on LAST (110)). The enhanced Curie temperature of (110)-oriented La 0.7 Sr 0.3 MnO 3 films could be attributed to the misfit strain between the films and the underlying substrates and may have technological implication for applications at high temperature environments.