We present results of calculations and experiments on electron-hole complexes in InGaAs/GaAs self-assembled quantum dots in high magnetic field (B). Due to hidden symmetries, the chemical potential of an N-exciton system at special B fields becomes insensitive to the exciton number as well as the magnetic field. This results in plateau regions of high intensity in measured magneto-PL spectrum. Theoretical calculations using exact diagonalization techniques successfully explain the measured magneto-photoluminescence spectrum with B fields up to 28 T.
|Number of pages||4|
|Journal||Physica E: Low-Dimensional Systems and Nanostructures|
|State||Published - 1 Mar 2004|
|Event||Proceedings of the Eleventh International Conference on Modulation (MSS11) - Nara, Japan|
Duration: 14 Jul 2003 → 18 Jul 2003
- Electron-hole complexes
- Quantum dot