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Crystal Structure and Properties of Yb 5 Ni 4 Ge 10
Author(s) -
Peter Sebastian C.,
Rayaprol Sudhindra,
Francisco Melanie C.,
Kanatzidis Mercouri G.
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100350
Subject(s) - crystallography , tetragonal crystal system , chemistry , crystal structure , paramagnetism , magnetic susceptibility , indium , ion , zigzag , condensed matter physics , physics , geometry , mathematics , organic chemistry
The new compound Yb 5 Ni 4 Ge 10 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 5 Co 4 Si 10 structure type in the tetragonal space group P 4/ mbm . The structure is a three‐dimensional framework of [Ni 4 Ge 10 ] 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 Yb 5 Ni 4 Ge 10 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 Yb 3+ ions. In specific heat measurements, the compound exhibits non‐Fermi‐liquid‐like behavior at low temperatures.