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Type: Artigo de periódico
Title: Understanding The Inverse Magnetocaloric Effect In Antiferro-and Ferrimagnetic Arrangements
Author: Von Ranke P.J.
De Oliveira N.A.
Alho B.P.
Plaza E.J.R.
De Sousa V.S.R.
Caron L.
Reis M.S.
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. © 2009 IOP Publishing Ltd.
Rights: fechado
Identifier DOI: 10.1088/0953-8984/21/5/056004
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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