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 2011

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Intermetallics
intermetallics
Magnetization
Paramagnetic materials
Single crystals
magnetization
Gallium
Acoustic impedance
single crystals
electrical resistance
polyhedrons
Magnetic moments
gallium
Molten materials
magnetic moments
X ray diffraction
diffraction
x rays
Temperature
temperature

Keywords

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

ASJC Scopus subject areas

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

Cite this

Structure and properties of rhombohedral CePd3Ga8 : A variant of the cubic parent compound with BaHg11 structure type. / MacAluso, Robin T.; Francisco, Melanie; Young, David P.; Stadler, Shane; Mitchell, John F.; Geiser, Urs; Hong, Han Yul; Kanatzidis, Mercouri G.

In: Journal of Solid State Chemistry, Vol. 184, No. 12, 12.2011, p. 3185-3189.

Research output: Contribution to journalArticle

MacAluso, Robin T. ; Francisco, Melanie ; Young, David P. ; Stadler, Shane ; Mitchell, John F. ; Geiser, Urs ; Hong, Han Yul ; Kanatzidis, Mercouri G. / Structure and properties of rhombohedral CePd3Ga8 : A variant of the cubic parent compound with BaHg11 structure type. In: Journal of Solid State Chemistry. 2011 ; Vol. 184, No. 12. pp. 3185-3189.
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