The ion conducting properties of perovskite solid solutions (La 1/2Li1/3+x)TiO3

The structure, microstructure and conductivity parameters of lithium-lanthanum titanates (La1/2Li1/3+x)TiO3 (x = 0; 1/10; 1/6; 1/5; 1/4) have been studied. Ionic conductivity has been found to decrease when lithium content increased due to both the cell volume and the A-site vacancy content decreasing. The anomalies on temperature dependences of dielectric permttivity and dielectric losses near 500 and 850K have been observed which may be connected with structural transformation and cation disordering in A-sublattice. © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Authors
Fortalnova E.A. 1 , Mosunov A.V.2 , Safronenko M.G. 1 , Venskovskii N.U. 1 , Politova E.D. 2
Conference proceedings
Physica Status Solidi C: Conferences
Number of issue
1
Language
English
Pages
192-195
Status
Published
DOI
10.1002/PSSC.200460143
Volume
2
Year
2005
Organizations
  • 1 Peoples' Friendship University of Russia, 3 Ordjonikidze st., 117198 Moscow, Russian Federation
  • 2 L.Ya. Karpov Institute of Physical Chemistry, 10 Vorontsovo pole, 105064 Moscow, Russian Federation
Keywords
Crystal structure; Ionic conduction; Microstructure; Permittivity; Perovskite; Positive ions; Solid solutions; Cation disordering; Dielectric perceptivity; Ionic conductivity; Structural transformations; Lithium compounds
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