Excitonic Mott transition in type-II quantum dots
| Autor: | Bansal, Bhavtosh, Hayne, M., Geller, M., Bimberg, D., Moshchalkov, V. V. |
|---|---|
| Rok vydání: | 2007 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.77.241304 |
| Popis: | Photoluminescence spectra measured on a type-II GaSb/GaAs quantum dot ensemble at high excitation power indicate a Mott transition from the low density state comprising of spatially-indirect excitons to a high density electron-plasma state. Under the influence of a very high magnetic field, the electron-plasma that is formed at high excitation powers is `frozen-out' into a state of optically inactive magneto-excitons. Comment: 4 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|