Abstract
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.
Original language | English (US) |
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Pages (from-to) | 3453-3456 |
Number of pages | 4 |
Journal | Journal of the American Ceramic Society |
Volume | 73 |
Issue number | 11 |
DOIs | |
State | Published - Jan 1 1990 |
Keywords
- cuprates
- defects
- lanthanum
- models
- superconductors
ASJC Scopus subject areas
- Ceramics and Composites
- Geology
- Geochemistry and Petrology
- Materials Chemistry