Abstract
The electrical resistivity, Hall coefficient, and thermopower as functions of temperature are reported for lightly electron-doped Ca1-x Lax Mn O3 (0≤x≤0.10). Unlike the case of hole-doped ferromagnetic manganites, the magnitude and temperature dependence of the Hall mobility (μH) for these compounds is found to be inconsistent with small-polaron theory. The transport data are better described by the Feynman polaron theory and imply intermediate coupling (α 5.4) with a band effective mass m* ∼4.3 m0 and a polaron mass mp ∼10 m0.
| Original language | English (US) |
|---|---|
| Article number | 024422 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 72 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jul 1 2005 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Cohn, J. L., Chiorescu, C., & Neumeier, J. J. (2005). Polaron transport in the paramagnetic phase of electron-doped manganites. Physical Review B - Condensed Matter and Materials Physics, 72(2), [024422]. https://doi.org/10.1103/PhysRevB.72.024422