The Formation Site of Noninterfacial Misfit Dislocations in InAs/GaAs Quantum Dots

Taking elastic anisotropy into consideration, we use a dislocation position dependent model to calculate the preferential formation site of noninterfacial 60° mixed dislocation segment in ellipsoid shaped InAs/GaAs quantum dots (QDs) which is observed in the experiment. From the result, it is clear...

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Bibliographic Details
Main Authors: Shuai Zhou, Yumin Liu, Pengfei Lu, Lihong Han, Zhongyuan Yu
Format: Article
Language:English
Published: Hindawi Limited 2014-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2014/103640
Description
Summary:Taking elastic anisotropy into consideration, we use a dislocation position dependent model to calculate the preferential formation site of noninterfacial 60° mixed dislocation segment in ellipsoid shaped InAs/GaAs quantum dots (QDs) which is observed in the experiment. From the result, it is clear that the positions near the right edge of the quantum dot are the energy favorable areas for the noninterfacial 60° mixed dislocations.
ISSN:1687-4110
1687-4129