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2005
Structure
D 2000
24- 011
Bi17Yb7O36 and BiYbO3 Crystal Structures. Characterization of Thulium and
Lutetium Homologous Compounds. — As revealed by Rietveld refinement of
powder XRD data, the new compounds Bi17 Ln7O36 (Ln: Yb, Tm, Lu) crystallize in the
orthorhombic space group Pmmm with Z = 1 and the compounds BiLnO3 (Ln: Yb, Tm,
Lu) in the triclinic space group P1 with Z = 8. The six compounds systematically transform from their low temperature form to a δ-Bi2O3-type phase on heating. The
Bi17Ln 7O36 series of compounds is further characterized by measurements of the
conductivity as a function of temperature. — (DRACHE*, M.; ROUSSEL, P.;
CONFLANT, P.; WIGNACOURT, J.-P.; Solid State Sci. 7 (2005) 3, 269-276; Lab.
Cristallochim. Physicochim. Solide, CNRS, Univ. Sci. Technol. Lille-Flandres-Artois,
F-59652 Villeneuve d'Ascq, Fr.; Eng.) — W. Pewestorf
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