Optics and magneto-optics of ZnSe heteroepitaxial layers
| Autor: | S. V. Sorokin, R.M. Datsiev, G.N. Aliev, R. P. Seisyan, Sergei Ivanov, P. S. Kop’ev |
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| Rok vydání: | 1996 |
| Předmět: |
Photoluminescence
Absorption spectroscopy Condensed Matter::Other business.industry Chemistry Exciton Physics::Optics Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Polaron Spectral line Inorganic Chemistry Condensed Matter::Materials Science Optics Effective mass (solid-state physics) Materials Chemistry business Quantum well |
| Zdroj: | Journal of Crystal Growth. 159:523-527 |
| ISSN: | 0022-0248 |
| DOI: | 10.1016/0022-0248(95)00810-1 |
| Popis: | Absorption, reflection, photoluminescence and magneto-absorption of MBE grown ZnSe heteroepitaxial layers and MQWs in ZnS Y Se 1-y /Zn 1-x Cd x Se have been studied on etched from the substrate, deformation free, super-thin samples at T= 1.7 K and B ≤ 7.5 T. Analysis of oscillatory magneto-absorption spectra gives the possibility to establish a new set of ZnSe band parameters with a bare electron effective mass m * c = 0.123 m o . Renormalization into a polaron set is necessary to describe exciton series. The combined use of these two sets permits us to obtain a good description of MQW excitonic spectra. The specific Fabry-Perot interference picture, characteristic for exciton-polariton phenomena, was observed in super-thin ZnSe samples. |
| Databáze: | OpenAIRE |
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