The heavy-hole-exciton splitting in type-II quantum wells due to the electron-hole exchange interaction is calculated in an effective-mass approximation. Good agreement with the trends observed in recent optically detected magnetic resonance experiments by van Kesteren and colleagues has been found. By comparison of theory with experiment the X- electron-hole exchange interaction for bulk GaAs is determined to be 80 meV/molecule.
ASJC Scopus subject areas
- Condensed Matter Physics