標題: | Effect of geometry on the excitonic diamagnetic shift of nano-rings |
作者: | Thu, L. M. Chiu, W. T. Lin, Ta-Chun Voskoboynikov, O. 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | nano-rings;exciton;diamagnetic shift |
公開日期: | 2011 |
摘要: | 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 |
URI: | http://hdl.handle.net/11536/15423 http://dx.doi.org/10.1002/pssc.201000449 |
ISSN: | 1862-6351 |
DOI: | 10.1002/pssc.201000449 |
期刊: | PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 2 |
Volume: | 8 |
Issue: | 2 |
顯示於類別: | 會議論文 |