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Magnetic and Magnetocaloric Properties of (Gd1-xCex)Al2 (x = 0, 0.25, 0.5, 0.75) Compounds
Journal of Magnetics, Volume 16, Number 4, 31 Dec 2011, Pages 337-341
Abstract
The magnetic and magnetocaloric properties of Gd1-xCexAl2 (x = 0, 0.25, 0.5, 0.75) intermetallic compounds alloys have been investigated in detail for the first time. XRD patterns indicated that all the samples were crystallized in a single phase with MgCu2-type structure (Laves phase). Ce substitution for Gd increased the lattice parameters and decreased the Curie temperature from 163 K for x = 0 to 37 K for x = 0.75. A maximum entropy change of 3.82 J/kg K was observed when a 2 T magnetic field was applied to the x = 0 sample. This entropy change decreased with increasing Ce content to 2.04 J/kg K for the x = 0.75 sample.
Keywords: magnetic properties; magnetocaloric effect; intermetallic compounds; laves phase
DOI: http://dx.doi.org/10.4283/JMAG.2011.16.4.337
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