Abstract
The crystal structure of the spinel LiZnNbO 4 has been refined by Rietveld's analysis of powder X-ray diffraction data. The structure has tetragonal symmetry and the cell parameters are: a = 6.0824(1), c = 8.4035(7) A ̇ , space group P4122 (Z = 4). The atomic positions are: Zn (4 c), Li (4 b), Nb (4 a), 01 (8 d) and 02 (8 d). A different ionic conductivity behaviour for the isostructural spinels LiZnNbO 4 and Li 2TeO 4 is detected and it is discussed on the basis of the mobile ion sites in both compounds.
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