Crystal structure of tetraytterbium septarhodium hexaantimony, Yb4Rh7Sb6

Abstract

Source of materialBulk material was produced by melting of stoichiometric amounts of ytterbium with prereacted rhodium antimony master alloys in glassy carbon crucibles, which were encapsulated into arc welded Ta tubes. All steps were carried out inside a argon-filled glove box (p(O 2, H2O) < 1 ppm

Ternary Antimonides RE4T7Sb6 (RE=Gd–Lu; T =Ru, Rh) with Cubic U4Re7Si6-type Structure

“…The intermediate-valent ytterbium compound Yb 4 Rh 7 Sb 6 has been reported earlier [22,26]. So far, more than 50 silicides, germanides, and germanide gallides [21, 27 -41] with this cubic structure type have been reported.…”

“…[22]; b data from ref. [26] pressure mode with a Zeiss EVO ® MA10 scanning electron microscope with the rare earth trifluorides, Ru, Rh, and Sb as standards. The experimentally observed average compositions were close to the ideal ones.…”