Room temperature spin relaxation in GaAs/AlGaAs multiple quantum wells
| Autor: | A. Malinowski, Richard T. Harley, P. Perozzo, A. R. Cameron, T. Grevatt, Alan Miller, R.S. Britton |
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| Rok vydání: | 1998 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Physics and Astronomy (miscellaneous) Condensed matter physics Condensed Matter::Other Phonon business.industry Scattering Exciton Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Photoexcitation Semiconductor Relaxation (physics) business Quantum well |
| Zdroj: | Applied Physics Letters. 73:2140-2142 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.122403 |
| Popis: | We have explored the dependence of electron spin relaxation in undoped GaAs/AlGaAs quantum wells on well width (confinement energy) at 300 K. For wide wells, the relaxation rate tends to the intrinsic bulk value due to the D’yakonov–Perel (DP) mechanism with momentum scattering by phonons. In narrower wells, there is a strong dependence of relaxation rate on well width, as expected for the DP mechanism, but also considerable variation between samples from different sources, which we attribute to differences in sample interface morphology. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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