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Structural Refinement by Neutron Diffraction of La1.12Li0.62Ti2O6

✍ Scribed by A.I. Ruiz; M.L. López; M.L. Veiga; C. Pico

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
132 KB
Volume
148
Category
Article
ISSN
0022-4596

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✦ Synopsis

Structural characterization of La 1.12 Lo 0.62 Ti 2 O 6 , which is a representative member of the series La 1.33؊x Li 3x Ti 2 O 6 by neutron di4raction at several temperatures (300, 400, 600, and 800 K) is performed. Crystal re5nement was carried out by the Rietveld method and con5rmed that this phase adopts a tetragonal symmetry (space group: P4/mmm) with an ordered distribution of the cations on the perovskite A sites.

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✍ K. Gruber; P. Hofer; M. Trömel; H. Fuess; M. Pinot 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 130 KB

Powder neutron diffraction of \(\mathrm{Ca}_{0.8} \mathrm{Bi}_{1.2} \mathrm{O}_{2.6}\) at \(8 \mathrm{~K}\) reveals a pseudocubic order-disorder structure, space group \(R 3 m, a=\) \(424.6 \mathrm{pm}\) and \(\alpha=90^{\circ}\). The average structure is of anti- \(\alpha-\mathrm{AgI}\) type, space