Title: Crystal Growth and Properties of YbCuGa<sub>3</sub>: First Monoclinic System in the RETX<sub>3</sub> Family
Abstract:High quality single crystals of YbCuGa3 were obtained from the reaction of Yb and Cu in excess liquid gallium as a solvent at 1173 K. The crystal structure of YbCuGa3 was refined using X-ray diffracti...High quality single crystals of YbCuGa3 were obtained from the reaction of Yb and Cu in excess liquid gallium as a solvent at 1173 K. The crystal structure of YbCuGa3 was refined using X-ray diffraction data on a selected high quality single crystal. YbCuGa3 crystallizes in a new structure type in the monoclinic space group C2/m and lattice constants a = 11.6891(8) Å, b = 4.162(4) Å, c = 8.3196(7) Å, and β = 110.834(5)°. The crystal structure of YbCuGa3 is composed of eight capped hexagonal prism cages [Yb4Cu4Ga12] occupying one ytterbium atom in each ring, which is shared through the edge Cu and Ga atoms along the ab plane resulting in a three-dimensional network. The magnetic susceptibility of YbCuGa3 was investigated in the temperature range 2–300 K obeying the Curie–Weiss law above 130 K and the experimentally measured magnetic moment indicates mixed valent ytterbium and a deviation in inverse susceptibility data below 130 K. Electrical conductivity measurements show that the compound exhibits metallic nature.Read More
Publication Year: 2013
Publication Date: 2013-01-14
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 33
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