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Structural and disorder effects on the magnetic behavior of Ce(In1-xNix)2 alloys

Abstract: We have investigated the evolution of the magnetic and thermal properties on the Ce(In1?xNix)2 (x=0.025 and 0.05) series of alloys. The orthorhombic structure of the CeIn2 alloy changes to hexagonal AlB2-type for the Ni-diluted samples. The dc (ac) magnetic susceptibility and specific heat measurements show a change from first-order ferromagnetism in the CeIn2 alloy (x=0) to second order ferromagnetism upon chemical substitution of Ni, with an abrupt decrease of the transition temperature from 22 K to 6.3 K (x=0.025). The results indicate a preeminent role of the crystallographic type of structure and disorder effects on the magnetic behavior along the series.

 Autoría: Rojas D.P., Espeso J.I., Rodríguez Fernández J.,

 Fuente: Journal of Magnetism and Magnetic Materials, 2013, 345, 190-194

 Editorial: Elsevier

 Fecha de publicación: 01/11/2013

 Nº de páginas: 5

 Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.jmmm.2013.06.046

 ISSN: 0304-8853,1873-4766

 Proyecto español: MAT 2011-27573-C04

 Url de la publicación: https://doi.org/10.1016/j.jmmm.2013.06.046