Magnetic entropy change above 300 K, which is larger than that of gadolinium (Phys. Rev. B 57 (1998) 3478), has been observed in a Cu-doped manganites of La0.7Sr0.3Mn1âˆ’xCuxO3 (x=0.05,0.1). The large magnetic entropy change originated from a sharp magnetization jump is associated with a first-order crystallographic phase transition of the sample near the Curie temperature. These results suggest that the present Cu-doped manganites are suitable candidate materials for magnetic refrigerants in the room temperature magnetic-refrigeration technology.
|Translated title of the contribution||Large magnetic entropy change in Co-doped manganites|
|Pages (from-to)||199 - 203|
|Number of pages||5|
|Journal||Journal of Magnetism and Magnetic Materials|
|Publication status||Published - Jan 2005|