Magnetocaloric effect in La1−xAgyMnO3 (y ⩽ x): direct and indirect measurements
作者： I K Kamilov , A G Gamzatov , A M Aliev , A B Batdalov , A A Aliverdiev
DOI: 10.1088/0022-3727/40/15/004
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摘要: For the first time magnetocaloric properties of La0.9Ag0.1MnO3, La0.8Ag0.2MnO3, La0.85Ag0.15MnO3, La0.8Ag0.15MnO3 and La0.8Ag0.1MnO3 manganites have been investigated by direct indirect measurement techniques. All samples showed almost same relative cooling power (RCP). Temperatures maxima effect (MCE) are between a few degrees below freezing room temperature region. The compounds RCP values about 100 J kg−1 at field change 2.6 T, which is half gadolinium. Because considerable MCE Curie temperatures ranging from 269 to 303 K, these materials could be used as magnetic refrigerants for refrigeration in sub-room range.
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