Optical absorption of CuGeO3
| Autor: | Bassi, M., Camagni, P., Rolli, R., Samoggia, G., Fulvio Parmigiani, Dhalenne, G., Revcolevschi, A. |
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| Přispěvatelé: | Bassi, M. Camagni, P., Rolli, R., Samoggia, G., Parmigiani, Fulvio, Dhalenne, G., Revcolevschi, A. |
| Rok vydání: | 1996 |
| Předmět: |
MAGNETIC PHASE-DIAGRAM
RAMAN-SCATTERING COMPOUND CUGEO3 URBACH RULE LINESHAPE NUMERICAL EXPERIMENTS SPIN-PEIERLS TRANSITION EXCITON SPIN-PEIERLS TRANSITION MAGNETIC PHASE-DIAGRAM LATTICE-VIBRATIONS NUMERICAL EXPERIMENTS RAMAN-SCATTERING COMPOUND CUGEO3 URBACH RULE EXCITON LINESHAPE STATE STATE LATTICE-VIBRATIONS |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0163-1829 |
| Popis: | The absorption coefficient of CuGeO3 was measured in the energy range of 1-4 eV, in a temperature interval between 300 and 20 K, for light polarized along the b and c crystal axes. A weak absorption band at 1.7 eV is attributed to copper d-d transitions partially allowed by electron-phonon interactions; this is followed by a region of transparency leading to a strong exponential edge above 3 eV, which is identified with the onset of charge-transfer transitions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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