Electrical behaviour of La1.33-xM3xTi2O6 perovskites (M=Li, Na and K)

被引：10

作者：

Ruiz, AI ^{[1
]}

López, ML ^{[1
]}

Veiga, ML ^{[1
]}

Pico, C ^{[1
]}

机构：

[1] Univ Complutense, Fac Ciencias Quim, Dept Quim Inorgan 1, E-28040 Madrid, Spain

来源：

INTERNATIONAL JOURNAL OF INORGANIC MATERIALS | 1999年 / 1卷 / 3-4期

关键词：

X-ray diffraction; ionic conductivity;

D O I：

10.1016/S1466-6049(99)00029-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Structural characterization and ionic conductivity properties of the La1.33-xM3xTi2O6 (M=Li, Na and K) perovskite-type series are reported. From X-Ray diffraction data two different symmetries, tetragonal and orthorhombic, were observed as a function of the ionic size of alkaline cations as well as their proportion in the compounds. Crystallographic features seem to influence on the two possible conduction mechanisms. Orthorhombic samples allow the charge carriers motion through a 3D pathway whereas in the tetragonal ones mobile cations only can move into the A-planes in which are located. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：193 / 200

页数：8

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