Magnetocaloric properties of doped lanthanum manganite films
- 1 January 1996
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 79 (1) , 373-375
- https://doi.org/10.1063/1.360840
Abstract
LaMnO3 films doped with Ca, Ba, or Sr have been fabricated using the metalorganic decomposition technique. These films exhibit paramagnetic‐to‐ferromagnetic phase transitions at 250, 300, and 350 K, respectively. By measuring the film magnetization as a function of field and temperature we have determined the entropy change associated with these transitions. The large magnetization of these materials results in a total entropy change a factor of five less than that of gadolinium, the prototypical high‐temperature magnetocaloric material. Improvements in film morphology and composition may provide a further increase in the magnetization and total entropy change in these materials.This publication has 12 references indexed in Scilit:
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