Nature of ionic conductivity of lanthanide tungstates with imperfect scheelite structure

N. N. Pestereva N. N. Pestereva , I. A. Vyatkin I. A. Vyatkin , D. A. Lopatin D. A. Lopatin , A. F. Guseva A. F. Guseva
Российский электрохимический журнал
Abstract / Full Text

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.

Author information
  • Ural Federal University Named after the First President of Russia B.N. Yel’tsin, Yekaterinburg, 620002, Russia

    N. N. Pestereva, I. A. Vyatkin, D. A. Lopatin & A. F. Guseva

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