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Type: Artigo de periódico
Title: Magnetocaloric effect due to spin reorientation in the crystalline electrical field: Theory applied to DyAl2
Author: von Ranke, PJ
de Oliveira, NA
Garcia, DC
de Sousa, VSR
de Souza, VA
Magnus, A
Carvalho, G
Gama, S
Reis, MS
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 DyAl2 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.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.75.184420
Date Issue: 2007
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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