On the magnetic and magnetocaloric properties of perovskite La1−xSrxCoO3

Abstract Structural, magnetic and magnetocaloric studies on La1−xSrxCoO3 (0.20⩽x⩽0.50) were reported. The crystal structure of the samples is rhombohedral with x=0.20–0.45 and is cubic with x=0.50. Magnetization, Curie temperature (Tc) and maximum magnetic-entropy change (ΔSmax) depending on the Sr content in the samples are discussed. La0.55Sr0.45CoO3 exhibits the largest value for ΔSmax and Tc among the compounds investigated.