NMR study of the cation localization of nonstoichiometric ferroelectric phases derived from LiTaO sub 3

Discussion focuses on 3 solid solutions of Li sub 1 sub + sub x Ta sub 1sub - sub x Ti sub x O sub 3 , and Li sub 1 sub - sub x Ta sub 1 sub - sub 3 sub x Ti sub 4 sub x O sub 3 studied by sup 7 Li NMR. In the first, where 5Li sup + substitutes for Ta sup 5 sup + , Li sup + exists in octahedral and...

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Bibliographic Details
Published in:Journal of solid state chemistry 1985-01, Vol.58 (2), p.137-142
Main Authors: Senegas, J, Zriouil, M
Format: Article
Language:fre
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Summary:Discussion focuses on 3 solid solutions of Li sub 1 sub + sub x Ta sub 1sub - sub x Ti sub x O sub 3 , and Li sub 1 sub - sub x Ta sub 1 sub - sub 3 sub x Ti sub 4 sub x O sub 3 studied by sup 7 Li NMR. In the first, where 5Li sup + substitutes for Ta sup 5 sup + , Li sup + exists in octahedral and tetrahedral sites. The second solid solution shows a large variation in the sup 7 Li quadrupolar spectrum with composition resulting from the large decrease in T sub / C/ near x=0.10.
ISSN:0022-4596