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Title: Enhanced elastic interactions between conical quantum dots
Authors: Gill, Simon P.A.
First Published: 16-Nov-2006
Publisher: American Institute of Physics
Citation: Applied Physics Letters, 2006, 89 (20), 3115 (3)
Abstract: An analytical model for the elastic energy of a system of conical heteroepitaxial quantum dots of finite slope is presented. An expression for the surface tractions at the dot-substrate interface is proposed. This includes a singularity in the stress field at the perimeter of the dot. The strength of this singularity increases as the slope of the dot increases. This dramatically enhances the elastic interaction between dots and the metastability of a quantum dot array. This could help explain the stability of bimodal island size distributions observed in some quantum dot systems.
DOI Link: 10.1063/1.2390651
ISSN: 0003-6951
eISSN: 1077-3118
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2006 American Institute of Physics. Deposited with reference to the publisher's archiving policy available on the SHERPA/RoMEO website. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 2006, 89 (20), 3115 (3) and may be found at
Appears in Collections:Published Articles, Dept. of Engineering

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