Excited-state magnetoluminescence of InAs/GaAs self-assembled quantum dots
2001 (English)In: Japanese Journal of Applied Physics, ISSN 0021-4922, Vol. 40, no 3B, 1998-2001 p.Article in journal (Refereed) Published
The magnetoluminescence of InAs/GaAs self-assembled quantum dots (QDs) is studied. Using different excitation intensities, the dots are tilled with up to 11-12 electron-hole pairs and the magnetic field evolution of the excited-state emissions is revealed. The magnetoluminescence spectra resemble very well the spectra of uncorrelated electro-hole pairs. A splitting of the states with a nonzero angular momentum quantum number is observed and the in-plane reduced electron-hole mass is determined. The experimental value is found to be in a good agreement with the theoretical predictions based on the eight-band k . p model including both strain effect and band nonparabolicity.
Place, publisher, year, edition, pages
2001. Vol. 40, no 3B, 1998-2001 p.
quantum dots, InAs/GaAs, magnetoluminescence, effective masses
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-49170OAI: oai:DiVA.org:liu-49170DiVA: diva2:270066