Jahn – Teller effect and magnetic property in anisotropic triangular

doi:10.1063/1.3545807

Jahn – Teller effect and magnetic property in anisotropic triangular

by Sheng-de Ouyang, Da-yong Liu, Liang-jian Zou, Hai-qing Lin

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Journal of Applied Physics (2011)

Volume: 109, Issue: 7, Pages: 07D716

ISSN: 00218979
DOI: 10.1063/1.3545807

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Abstract

Magnetic properties and magnetocaloric effect of GdFeAl compound have been investigated. The small saturated magnetization of GdFeAl compound is caused by the antiferromagnetic coupling between the magnetic moments of Gd and Fe atoms. A second-order magnetic phase transition is confirmed around 265 K. The maximum magnetic entropy change for GdFeAl compound is 3.7 J kg(-1) K-1 under the field change of 0-5 T. However, a large refrigerant capacity of 420 J kg(-1) is obtained, which is due to the large full width at half peak of the magnetic entropy change versus temperature curve in GdFeAl compound. (C) 2009 American Institute of Physics. DOI: 10.1063/1.3059372