Coexisting holes and electrons in high-TCmaterials: implications from normal state transport
| Autor: | Dale R. Harshman, John D. Dow, Anthony T. Fiory |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Condensed matter physics Scattering Condensed Matter - Superconductivity FOS: Physical sciences Electron Condensed Matter Physics Superconductivity (cond-mat.supr-con) Residual resistivity Thermal conductivity Effective mass (solid-state physics) Hall effect Electrical resistivity and conductivity Condensed Matter::Superconductivity Electronic band structure |
| Zdroj: | Philosophical Magazine. 91:818-840 |
| ISSN: | 1478-6443 1478-6435 |
| Popis: | Normal state resistivity and Hall effect are shown to be successfully modeled by a two-band model of holes and electrons that is applied self-consistently to (i) DC transport data reported for eight bulk-crystal and six oriented-film specimens of YBa2Cu3O7-{\delta}, and (ii) far-infrared Hall angle data reported for YBa2Cu3O7-{\delta} and Bi2Sr2CaCu2O8+{\delta}. The electron band exhibits extremely strong scattering; the extrapolated DC residual resistivity of the electronic component is shown to be consistent with the previously observed excess thermal conductivity and excess electrodynamic conductivity at low temperature. Two-band hole-electron analysis of Hall angle data suggest that the electrons possess the greater effective mass. Comment: 22 pages, 7 figures, 4 tables and 78 references |
| Databáze: | OpenAIRE |
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