Research of Equilibrium Composition Map in Conic Quantum Dots

We present equilibrium composition maps in InGaAs/GaAs conic strained quantum dots, using the finite element method and quadratic programming optimization method. The axis-symmetric model is adopted. We compare the steep islands with the shallow islands and determine the influence of entropie energy...

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Bibliographic Details
Published inChinese physics letters Vol. 27; no. 5; pp. 189 - 191
Main Author 赵伟 俞重远 刘玉敏 冯昊 徐子欢
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.05.2010
Subjects
Conics
Gallium arsenide
Indium gallium arsenides
Islands
MAP (programming language)
Mathematical analysis
Mathematical models
Quantum dots
二次规划
平衡组成
有限元方法
砷化铟镓
轴对称模型
量子点
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Summary:We present equilibrium composition maps in InGaAs/GaAs conic strained quantum dots, using the finite element method and quadratic programming optimization method. The axis-symmetric model is adopted. We compare the steep islands with the shallow islands and determine the influence of entropie energy. The difference of equilibrium composition maps between the single dot and the quantum dot stacks is also discussed.
Bibliography:TQ541
11-1959/O4
O471.1
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/5/056803