An efficient composite magnetocaloric material with a tunable temperature transition in K-deficient manganites

Abstract

This paper reports on a magnetic material with high steady relative cooling power (RCP) over a temperature range from 325 to 275 K induced by potassium-deficiency in polycrystalline samples of La_0.8K_0.2−x□_xMnO₃(<italic>x</italic>= 0, 0.1 and 0.2).