Anisotropic valence bands in quantum wells: Quantitative comparison of theory and experiment
| Autor: | M. A. Tischler, Jeffrey A. Kash, M. Zachau, U. Ekenberg |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Physics
chemistry.chemical_classification Valence (chemistry) Photoluminescence business.industry General Physics and Astronomy Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Molecular physics Brillouin zone Condensed Matter::Materials Science Optics chemistry Image warping Anisotropy Electronic band structure business Inorganic compound Quantum well |
| Zdroj: | Physical Review Letters. 69:2260-2263 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.69.2260 |
| Popis: | The valence subband dispersion of GaAs/AlGaAs quantum wells is measured with meV accuracy using the recombination of hot electrons at neutral acceptors. This precision, in combination with polarization-dependent matrix elements, allows direct observation and measurement of the warping. The measurements, for in-plane wave vectors which extend over a substantial fraction of the Brillouin zone, are shown to be in very good agreement with k\ensuremath{\cdot}p calculations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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