Excitonic reflectance of GaAs crystals cleaved in liquid helium
| Autor: | I. Balslev, L. Schultheis |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
congenital
hereditary and neonatal diseases and abnormalities Materials science business.industry Liquid helium nutritional and metabolic diseases Resonance Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Molecular physics Reflectivity Spectral line law.invention Adiabatic theorem Condensed Matter::Materials Science law Electric field Optoelectronics business Optical reflectance Line (formation) |
| Zdroj: | Physical Review B. 28:2292-2295 |
| ISSN: | 0163-1829 |
| DOI: | 10.1103/physrevb.28.2292 |
| Popis: | We report optical reflectance spectra near the $n=1$ excitonic resonance of GaAs. The experimental results from crystals cleaved in liquid helium and exposed to air exhibit noticeable changes of the line shape. Comparison with a model based on the adiabatic approximation indicates that line-shape distortions by surface electric fields are unavoidable for air-exposed GaAs surfaces. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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