Electrical Conduction of Lanthanum Metaniobate

Electrical Conduction of Lanthanum Metaniobate The electrical conduction of LaNb3O9 is studied in the temperature range of 100 – 1100°C in air. It is shown, using a polarization method, that the electric transfer above 470°C is of electronic nature (ΔE = 1.40 eV), and below 470°C — predominantly of anionic nature ( ΔE = 0.65 eV). Electric conduction of the nonstoichiometric lanthanum metaniobate involved the reduction of Nb5+ to Nb4+. Depending on the synthesis conditions, LaNb3O9 can behave as an electronic, cationic, or anionic conductor, which provides a way for obtaining a material with tailored properties. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Electrical Conduction of Lanthanum Metaniobate

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by Plenum Publishing Corporation
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1023/A:1015859716018
Publisher site
See Article on Publisher Site

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