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2010 | 118 | 5 | 877-878
Article title

Magnetic Properties and Specific Heat of Laves Phase Tb_{1-x}Sc_{x}Ni_2 (x = 0.1, 0.2) Solid Solutions

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Abstracts
EN
Magnetic and specific heat measurements have been performed on polycrystalline TbNi_2, ScNi_2 and their solid solutions Tb_{1-x}Sc_{x}Ni_2 (x = 0.1, 0.2). These compounds were synthesized using high-purity rare-earth metals. It has been found that the magnetic susceptibility of the nonmagnetic ScNi_2 compound exhibits a very weak temperature dependence characteristic of the Pauli paramagnets. TbNi_2, Tb_{0.9}Sc_{0.1}Ni_2 and Tb_{0.8}Sc_{0.2}Ni_2 are typical Curie-Weiss paramagnets and are ferromagnetically ordered below 36 K. As revealed by room-temperature X-ray powder diffraction all the Tb_{1-x}Sc_{x}Ni_2 solid solutions have the cubic Laves C15-type superstructure. The Debye temperature, phonon and conduction electron contributions as well as the magnetic part of heat capacity were determined. The magnetocaloric effect has been studied by means of specific heat measurements in magnetic fields of 0.42 and 1 T. The effect of rare-earth substitution in ScNi_2 on the magnetic and magnetocaloric properties will be discussed.
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Contributors
author
  • International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wrocław, Poland
author
  • International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wrocław, Poland
author
  • International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wrocław, Poland
  • IFW Dresden, Postfach 270016, 01171 Dresden, Germany
author
  • IFW Dresden, Postfach 270016, 01171 Dresden, Germany
author
  • International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wrocław, Poland
author
  • IFW Dresden, Postfach 270016, 01171 Dresden, Germany
author
  • International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wrocław, Poland
  • Institute of Low Temperature and Structure Research, PAS, Okólna 2, 50-422 Wrocław, Poland
References
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  • 5. J. Ćwik, Ph.D. Thesis, International Laboratory of High Magnetic Fields and Low Temperatures of PAS, Wrocław 2006
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n5066kz
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