Transport properties of trivalent substituted Li-ferrites

Authors
Sattar, AA Wafik, AH El-Sayed, HM
Citation
Aa. Sattar et al., Transport properties of trivalent substituted Li-ferrites, J MATER SCI, 36(19), 2001, pp. 4703-4706
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE
ISSN journal
00222461 → ACNP
Volume
36
Issue
19
Year of publication
2001
Pages
4703 - 4706
Database
ISI
SICI code
0022-2461(2001)36:19<4703:TPOTSL>2.0.ZU;2-K
Abstract
The electrical resistivity and thermoelectric power of Li-0.5Fe2.5-xRxO4 (R = Al, La, Sm and Gd; x = 0.0 and 0.1) are studied. The distribution of the substituted ions over the different lattice sites is determined from IR sp ectra. The electrical resistivity is found to have a direct relation with t he ionic radius of the substituted R ions. Meanwhile, the absolute value of thermoelectric power decreased with increasing ionic radius.