Cooling by adiabatic pressure application in La sub(0.7)Ca sub(0.3)MnO sub(3) magnetocaloric effect material

The effect of hydrostatic pressure on Curie temperature, the critical exponents and entropy change in La sub(0.7)Ca sub(0.3)MnO sub(3) are determined. The pressure increases the Curie temperature. The combined magnetic entropy change, due to both magnetic field and pressure application, is found to...

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Published inJournal of magnetism and magnetic materials Vol. 322; no. 9-12; pp. 1589 - 1591
Main Authors Szymczak, R, Kolano, R, Kolano-Burian, A, Pietosa, J, Szymczak, H
Format Journal Article
LanguageEnglish
Published 01.06.2010
Subjects
Adiabatic flow
Cooling effects
Curie temperature
Entropy
Hydrostatic pressure
Magnetic fields
Magnetism
Manganites
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Summary:The effect of hydrostatic pressure on Curie temperature, the critical exponents and entropy change in La sub(0.7)Ca sub(0.3)MnO sub(3) are determined. The pressure increases the Curie temperature. The combined magnetic entropy change, due to both magnetic field and pressure application, is found to be significant. It suggests that manganites are suitable candidates as barocaloric refrigerants near room-temperature region.
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ISSN:0304-8853
DOI:10.1016/j.jmmm.2009.09.020