Structure and properties of rhombohedral CePd3Ga8: A variant of the cubic parent compound with BaHg11 structure type

Robin T. MacAluso, Melanie Francisco, David P. Young, Shane Stadler, John F. Mitchell, Urs Geiser, Han Yul Hong, Mercouri G. Kanatzidis

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Single crystals of a new intermetallic gallide, R-CePd3Ga 8, have been synthesized from excess molten gallium. Single-crystal X-ray diffraction reveals that R-CePd3Ga8 crystallizes in the R-3m space group with a=b=c=8.4903(10) Å and α=β=γ= 89.993(17). R-CePd3Ga8 is a variant of the cubic BaHg 11 structure type with three structural units: a Ce-centered polyhedron, a distorted cube of Pd2Ga6 and a Pd-centered cuboctahedron. The distortions of these units are compared to undistorted analogous units in intermetallic compounds with BaHg11 structure type. Field and temperature-dependent magnetization measurements on R-CePd 3Ga8 reveal a paramagnetic material with strong antiferromagnetic correlations and a magnetization consistent with Ce 3. Electrical resistance measurements indicate Kondo behavior between localized Ce3 magnetic moments.

Original languageEnglish
Pages (from-to)3185-3189
Number of pages5
JournalJournal of Solid State Chemistry
Volume184
Issue number12
DOIs
Publication statusPublished - Dec 1 2011

Keywords

  • BaHg type
  • CePdGa
  • Flux growth
  • Intermetallic
  • Single-crystal X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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