LA0.7SR0.3MNO3 MAGNETIC MATERIAL WITH IMPROVED RELATIVE COOLING POWER TO ADD CERIUM AND MANUFACTURING METHOD THEREOF

摘要

The present invention relates to a lanthanum strontium manganese oxide magnetic material with an improved magnetocaloric effect by adding cerium and a manufacturing method thereof. According to the present invention, a lanthanum strontium manganese oxide magnetic material with an improved magnetocaloric effect by adding cerium comprises a polycrystalline lanthanum strontium manganese oxide wherein cerium is doped for a phase transition temperature adjacent to a room temperature to be shown.