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

L.M Thu; WT Chiu; Oleksandr Voskoboynikov

doi:10.1002/pssc.201000449

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

L.M Thu, WT Chiu, Oleksandr Voskoboynikov

Department of Electronics Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

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 language	English
Title of host publication	37th International Symposium on Compound Semiconductors (ISCS)
Volume	8
DOIs	https://doi.org/10.1002/pssc.201000449
State	Published - 2011

Keywords

nano-rings; exciton; diamagnetic shift
ENERGY

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title = "Effect of geometry on the excitonic diamagnetic shift of nano-rings",

abstract = "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",

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AU - Thu, L.M

AU - Chiu, WT

AU - Voskoboynikov, Oleksandr

PY - 2011

Y1 - 2011

N2 - 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

AB - 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

KW - nano-rings; exciton; diamagnetic shift

KW - ENERGY

U2 - 10.1002/pssc.201000449

DO - 10.1002/pssc.201000449

M3 - Conference contribution

VL - 8

BT - 37th International Symposium on Compound Semiconductors (ISCS)

ER -