Magnetocaloric effect in phase separated manganite probed by differential thermal análisis

MARIANO QUINTERO; JOAQUIN SACANELL; LUIS GHIVELDER; ANGELO M. S GOMES; ANA GABRIELA LEYVA; FRANCISCO PARISI

PHYSICA B - CONDENSED MATTER

ELSEVIER SCIENCE BV

Año: 2009 vol. 404 p. 2763 - 2765

0921-4526

Differential thermal analysis is used to measure the temperature change (DT) due to the application of an external magnetic field in a manganite with phase separation. The temperature dependence of  DT is compared with the expected from magnetization measurements. A phenomenological model for the enthalpy change is used to obtain DT during the metamagnetic transition. DT) due to the application of an external magnetic field in a manganite with phase separation. The temperature dependence of  DT is compared with the expected from magnetization measurements. A phenomenological model for the enthalpy change is used to obtain DT during the metamagnetic transition.