Understanding the inverse magnetocaloric effect in antiferro- and ferrimagnetic arrangements.
J Phys Condens Matter
; 21(5): 056004, 2009 Feb 04.
Article
em En
| MEDLINE
| ID: mdl-21817310
ABSTRACT
The inverse magnetocaloric effect occurs when a magnetic material cools down under applied magnetic field in an adiabatic process. Although the existence of the inverse magnetocaloric effect was recently reported experimentally, a theoretical microscopic description is almost nonexistent. In this paper we theoretically describe the inverse magnetocaloric effect in antiferro- and ferrimagnetic systems. The inverse magnetocaloric effects were systematically investigated as a function of the model parameters. The influence of the Néel and the compensation temperature on the magnetocaloric effect is also analyzed using a microscopic model.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2009
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Article