High‐temperature (650° to 8507deg;C) electrical conductivity and Seebeck coefficient measurements as functions of oxygen partial pressure and temperature in polycrystalline lanthanum cuprate support a defect model consisting of oxygen interstitials charge compensated by electron holes. The La:Cu ratio was therefore estimated to be 2.000 ± 0.001. By comparison with existing oxygen nonstoichiometry data, the high‐temperature electron hole mobility and density‐of‐states were estimated.
|Number of pages||4|
|Journal||Journal of the American Ceramic Society|
|Publication status||Published - 1990|
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry