The crystal structure, electronic, and magnetic properties of NaPd3Ge2

Mazhar N. Ali, Fabian Von Rohr, C. Campana, Andreas Schilling, R. J. Cava

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2 Scopus citations

Abstract

Crystals of NaPd3X2, (X = Si, Ge, Sn) were synthesized and their crystal structures investigated by single crystal X-ray diffraction. The previously reported structures of NaPd3Si2 and NaPd3Sn2 were confirmed. NaPd3Ge2 was found to have a different unit cell from that originally reported; therefore the structure was solved. It is an orthorhombically distorted version of the hexagonal CeCo3Be2-type structure, in space group Imma, with cell parameters a = 7.244(1) Å, b = 9.938(1) Å, c = 5.767(2) Å. The originally reported cell is explained through triple twinning of the true cell. The structure of NaPd3Ge2 fits the trend of decreasing X-X dimerization as a function of increasing period from Si-Sn. All three compounds are metals showing weak diamagnetism with increasing resistivity from NaPd3Si2-NaPd3Sn2; no superconductivity is observed down to 2 K.

Original languageEnglish (US)
Pages (from-to)673-677
Number of pages5
JournalMaterials Research Bulletin
Volume70
DOIs
StatePublished - Jun 12 2015

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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