Abstract
Plots of Seebeck coefficient vs the logarithm of electrical conductivity (Jonker plots) can be used to discriminate small polaron from band-type semiconductivity. Furthermore n-type and p-type small polaron conduction can be discriminated. Examples are drawn from systems exhibiting extensive nonstoichiometry, e.g., CeO2-x and Fe1-xO, systems involving extensive doping, e.g., LaCro3:Sr and Mn3O4: Fe, and systems with extensive solid solubility, e.g., the spinel ferrites. Capabilities and limitations of the analysis are discussed.
Original language | English (US) |
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Pages (from-to) | 247-254 |
Number of pages | 8 |
Journal | Journal of Solid State Chemistry |
Volume | 82 |
Issue number | 2 |
DOIs | |
State | Published - Oct 1989 |
Funding
This work was supported by DOE Grant FG02-84ER45097. The spine1 ferrite work was supported by NSF Grant EAR-8618340. The help of M.-Y. Su with the figures is greatly appreciated.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry