Journal of Magnetics

  • 제16권4호
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  • Pages.337-341
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  • 2011
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  • 1226-1750(pISSN)
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  • 2233-6656(eISSN)
한국자기학회 (The Korean Magnetics Society)
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Magnetic and Magnetocaloric Properties of (Gd1-xCex)Al2(x = 0, 0.25, 0.5, 0.75) Compounds

  • Gencer, H. (Physics Department, Science and Arts Faculty, Inonu University) ;
  • Izgi, T. (Physics Department, Science and Arts Faculty, Inonu University) ;
  • Kolat, V.S. (Physics Department, Science and Arts Faculty, Inonu University) ;
  • Kaya, A.O. (Physics Department, Science and Arts Faculty, Inonu University) ;
  • Atalay, S. (Physics Department, Science and Arts Faculty, Inonu University)
  • 투고 : 2011.07.08
  • 심사 : 2011.10.04
  • 발행 : 2011.12.31
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초록

The magnetic and magnetocaloric properties of $Gd_{1-x}Ce_xAl_2$ (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 $MgCu_2$-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.

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