Effect of geometry on the excitonic diamagnetic shift of nano-rings

L.M Thu, WT Chiu, Oleksandr Voskoboynikov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We simulate magneto-excitons confined in asymmetrically wobbled three-dimensional InAs/GaAs nano-rings. The wobbling asymmetry reproduces realistic experimental geometry of the rings and generates an asymmetry in the side valleys of the three dimensional confinement potential. Using our mapping method and the exact diagonization approach we calculated the excitonic diamagnetic shift and found that even a small wobbling asymmetry can drastically change the diamagnetic shift coefficient. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Original languageEnglish
Title of host publication37th International Symposium on Compound Semiconductors (ISCS)
StatePublished - 2011


  • nano-rings; exciton; diamagnetic shift

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