DyAlO3 : a more promising refrigerant than Dy3Al5O12 ?

A simplified mean-field calculation of the magnetic entropy change for the Ising-like rare-earth magnets DyAlO3 and Dy3Al5O12 is performed, showing DyAlO3 to be a more promising working material for the 4.2–20 K range Carnot-type magnetic refrigerators than the conventional refrigerant Dy3Al5O12.

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Bibliographic Details
Published in:Journal of applied physics 1993-04, Vol.73 (8), p.4083-4085
Main Authors: KUZ'MIN, M. D, TISHIN, A. M
Format: Article
Language:English
Subjects:
Applied sciences
Cryogenics
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Refrigerating engineering. Cryogenics. Food conservation
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Summary:A simplified mean-field calculation of the magnetic entropy change for the Ising-like rare-earth magnets DyAlO3 and Dy3Al5O12 is performed, showing DyAlO3 to be a more promising working material for the 4.2–20 K range Carnot-type magnetic refrigerators than the conventional refrigerant Dy3Al5O12.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.352835