Complex quantum ring structures formed by droplet epitaxy

Well-defined complex quantum ring structures formed by droplet epitaxy are demonstrated. By varying the temperature of the crystallizing Ga droplets and changing the As flux, Ga As ∕ Al Ga As quantum single rings and concentric quantum double rings are fabricated, and double-ring complexes are obser...

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Bibliographic Details
Published in:Applied physics letters 2006-07, Vol.89 (3), p.031921-031921-3
Main Authors: Huang, Shesong, Niu, Zhichuan, Fang, Zhidan, Ni, Haiqiao, Gong, Zheng, Xia, Jianbai
Format: Article
Language:English
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Summary:Well-defined complex quantum ring structures formed by droplet epitaxy are demonstrated. By varying the temperature of the crystallizing Ga droplets and changing the As flux, Ga As ∕ Al Ga As quantum single rings and concentric quantum double rings are fabricated, and double-ring complexes are observed. The growth mechanism of these quantum ring complexes is addressed.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2234564