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Evaluation of Bond Covalency and Bond Valence in Sr-Doped Perovskite-Type Compounds

✍ Scribed by Z. J. Wu; S. Y. Zhang

Publisher
John Wiley and Sons
Year
1999
Tongue
German
Weight
66 KB
Volume
82
Category
Article
ISSN
0018-019X

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According to the Rietveld refinement, the perovskites \(\mathrm{Ca}_{2} \mathrm{CrTaO}_{6}\) and \(\mathrm{Sr}_{2} \mathrm{Cr}^{2} \mathrm{TaO}_{6}\) are found to have space groups \(P 2_{1} / n\) (monoclinic, \(a=5.4199(1) \AA, b=5.4936(1) \AA, c=\) \(7.7108(2) \AA\), and \(\beta=90.02(1)^{\circ}\)