Nature of ionic conductivity of lanthanide tungstates with imperfect scheelite structure
- Authors: Pestereva N.N.1, Vyatkin I.A.1, Lopatin D.A.1, Guseva A.F.1
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Affiliations:
- Ural Federal University Named after the First President of Russia B.N. Yel’tsin
- Issue: Vol 52, No 11 (2016)
- Pages: 1082-1089
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/188279
- DOI: https://doi.org/10.1134/S1023193516110094
- ID: 188279
Cite item
Abstract
Electric properties of tungstates with imperfect scheelite structure, Ln2(WO4)3 (Ln = La, Sm, Eu), are studied; the charge carrier type is determined in these phases. It is found that the conductivity type of Ln2(WO4)3 is predominantly ionic, though there is a contribution of n-type electron conductivity component in the case of Eu2(WO4)3. The Tubandt method was used to establish a negligible contribution of the [WO4]2– anion into transport, which, together with the results of the EMF technique, points to the predominantly oxygen character of conductivity.
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About the authors
N. N. Pestereva
Ural Federal University Named after the First President of Russia B.N. Yel’tsin
Author for correspondence.
Email: Natalie.Pestereva@urfu.ru
Russian Federation, Yekaterinburg, 620002
I. A. Vyatkin
Ural Federal University Named after the First President of Russia B.N. Yel’tsin
Email: Natalie.Pestereva@urfu.ru
Russian Federation, Yekaterinburg, 620002
D. A. Lopatin
Ural Federal University Named after the First President of Russia B.N. Yel’tsin
Email: Natalie.Pestereva@urfu.ru
Russian Federation, Yekaterinburg, 620002
A. F. Guseva
Ural Federal University Named after the First President of Russia B.N. Yel’tsin
Email: Natalie.Pestereva@urfu.ru
Russian Federation, Yekaterinburg, 620002