Complex quantum ring structures formed by droplet epitaxy

被引：78

作者：

Huang, Shesong ^{[1
]}

Niu, Zhichuan ^{[1
]}

Fang, Zhidan ^{[1
]}

Ni, Haiqiao ^{[1
]}

Gong, Zheng ^{[1
]}

Xia, Jianbai ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2234564

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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, GaAs/AlGaAs 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. (c) 2006 American Institute of Physics.

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页数：3

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