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New TiNiSi-type RMgAg and RMgPd with R=Ca, Yb, and MgZn2-type Ca(Mg,Ag)2 compounds

  • Basic And Applied Research
  • Published:
Journal of Phase Equilibria

Abstract

The phases CaMgAg, YbMgAg, CaMgPd, and YbMgPd were synthesized by melting the constituent metals in sealed tantalum crucibles and by annealing at 1023 K. All the samples were homogeneous, and the crystallographic analysis, which was performed by powder and singlecrystal techniques, shows that the four compounds are isotypic and belong to the orthorhombic TiNiSi type. Magnetic measurements showed that YbMgAg and YbMgPd behave like Pauli paramagnets, according to the divalency of Yb in both phases. Within the Ca-Mg-Ag system, the existence range of the MgZn2-type phases in the Mg-rich CaMg2−x Ag x pseudobinary system goes from CaMg2 to CaMg1.6Ag0.4. Another stability region of the MgZn2 structure occurs around the Ag-rich composition (Ca0.94Mg0.06)(Ag1.60Mg0.40), where magnesium replaces both the Ca and Ag atoms.

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Authors and Affiliations

  1. Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146, Genova, Italy

    M. L. Fornasini, F. Merlo & M. Pani

  2. INFM (Istituto Nazionale di Fisica della Materia) and Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146, Genova, Italy

    M. Napoletano

Authors
  1. M. L. Fornasini
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  2. F. Merlo
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  3. M. Pani
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  4. M. Napoletano
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Fornasini, M.L., Merlo, F., Pani, M. et al. New TiNiSi-type RMgAg and RMgPd with R=Ca, Yb, and MgZn2-type Ca(Mg,Ag)2 compounds. JPE 23, 57–60 (2002). https://doi.org/10.1361/105497102770332216

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  • DOI: https://doi.org/10.1361/105497102770332216

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