PREPARATION AND CHARACTERIZATION OF LANTHANUM DOPED BASNO3

Authors
TRARI M DOUMERC JP DORDOR P POUCHARD M BEHR G KRABBES G
Citation
M. Trari et al., PREPARATION AND CHARACTERIZATION OF LANTHANUM DOPED BASNO3, Journal of physics and chemistry of solids, 55(11), 1994, pp. 1239-1243
Citations number
16
Categorie Soggetti
Physics, Condensed Matter",Chemistry
Journal title
Journal of physics and chemistry of solids → ACNP
ISSN journal
00223697
Volume
55
Issue
11
Year of publication
1994
Pages
1239 - 1243
Database
ISI
SICI code
0022-3697(1994)55:11<1239:PACOLD>2.0.ZU;2-7
Abstract
Lanthanum has been substituted for barium in the perovskite type Ba1-x LaxSnO3 solid solutions. The substitution rate is restricted to a smal l range of x-values (0 less than or equal to x less than or equal to 0 .02). The temperature dependence of the electrical resistivity and of the thermoelectric power reveals a scattering of carriers by disorder in metallic type samples (x greater than or equal to 0.01) and a hoppi ng mechanism in non-metallic ones where the localization seems to be o f Anderson type.