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Type: Artigo de periódico
Title: Magnetocaloric Effect Due To Spin Reorientation In The Crystalline Electrical Field: Theory Applied To Dy Al2
Author: Von Ranke P.J.
De Oliveira N.A.
Garcia D.C.
De Sousa V.S.R.
De Souza V.A.
Carvalho A.M.G.
Gama S.
Reis M.S.
Abstract: We report a way of obtaining the magnetocaloric effect due to the crystal electrical-field quenching of the total angular momentum in a magnetic system where a strong spin reorientation is present. The theoretical model is applied to Dy Al2 and the results predict a considerable magnetic entropy change by rotating a single crystal in a fixed magnetic field. The obtained temperature and magnetic-field dependencies of the magnetization component along the 111-crystallographic direction are in good agreement with the recently reported experimental data. © 2007 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.75.184420
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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