Crystal structure and properties of Yb5Ni4Ge 10

Sebastian C. Peter, Sudhindra Rayaprol, Melanie C. Francisco, Mercouri G. Kanatzidis

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25 Citations (Scopus)

Abstract

The new compound Yb5Ni4Ge10 was obtained as single crystals in high yield from reactions run in liquid indium. Single-crystal X-ray diffraction data showed that it crystallizes in the Sc 5Co4Si10 structure type in the tetragonal space group P4/mbm. The structure is a three-dimensional framework of [Ni 4Ge10] atoms with voids filled by Yb atoms. The Ni and Ge atoms form pentagons, hexagons, and octagons along the ab one-dimensional plane, which are interconnected along the c axis via Ni-Ge-Ni zigzag chains. Magnetic measurements reveal that Yb5Ni4Ge10 crystals show paramagnetic behavior with a lack of long-range magnetic ordering down to 2 K. The magnetic susceptibility deviates from the Curie-Weiss law below 100 K, presumably because of crystal field effects from Yb3+ ions. In specific heat measurements, the compound exhibits non-Fermi-liquid-like behavior at low temperatures.

Original languageEnglish
Pages (from-to)3963-3968
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Issue number26
DOIs
Publication statusPublished - Sep 1 2011

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Keywords

  • Heat capacity
  • Intermetallic phases
  • Magnetic properties
  • Rare earths
  • Ytterbium

ASJC Scopus subject areas

  • Inorganic Chemistry

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