Magnetocaloric effect in La{sub 0.67}Ca{sub 0.33}MnO{sub {delta}} and La{sub 0.60}Y{sub 0.07}Ca{sub 0.33}MnO{sub {delta}} bulk materials

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.117218· OSTI ID:397402

Zhang, X X; Tejada, J ^[1]; Xin, Y; Sun, G F; Wong, K W ^[2]; Bohigas, X ^[3]

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1. Fac. Fisica, Universitat de Barcelona, Diagonal 647, Barcelona 08028 (Spain)
2. Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)
3. Department de Fisica i Eng. Nuclear, UPC, Diagonal 647, 08028 Barcelona (Spain)

The dependence of magnetization on the applied magnetic field and temperature was measured carefully near their Curie temperatures for two perovskite manganite samples: La{sub 0.67}Ca{sub 0.33}MnO{sub {delta}} and La{sub 0.60}Y{sub 0.07}Ca{sub 0.33}MnO{sub {delta}}. It is suggested by the results that these materials can be utilized as both the thermal storage (passive regeneration) and as the working material (active regeneration) in an active magnetic regenerative refrigerator with very large temperature span, for their significant entropy change upon the application of a magnetic field and the easily tuned Curie temperatures. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 397402
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 23 Vol. 69; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CALCIUM OXIDES
LANTHANUM OXIDES
MAGNETIC REFRIGERATORS
MAGNETIC SPECIFIC HEAT
MAGNETIZATION
MANGANESE OXIDES
PEROVSKITES
REFRIGERATION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0065-0273 K
YTTRIUM OXIDES