Quantum dot to quantum wire transition of m -plane GaN islands

Structural studies of m-plane GaN quantum dots and quantum wires are presented. A shape transition responsible for the evolution of quantum dots into quantum wires is put in evidence and shown to depend on the amount of material deposited. In addition, it is established that vertical correlation of...

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Published in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2009-01, Vol.79 (3), Article 035313
Main Authors: Amstatt, B., Renard, J., Bougerol, C., Bellet-Amalric, E., Gayral, B., Daudin, B.
Format: Article
Language:English
Subjects:
Condensed Matter
CORRELATIONS
DIFFUSION
FORECASTING
GALLIUM NITRIDES
LAYERS
MATERIALS SCIENCE
MINIMIZATION
Physics
QUANTUM DOTS
QUANTUM WIRES
SEMICONDUCTOR MATERIALS
WIRES
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container_title Physical review. B, Condensed matter and materials physics
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creator Amstatt, B.
Renard, J.
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description Structural studies of m-plane GaN quantum dots and quantum wires are presented. A shape transition responsible for the evolution of quantum dots into quantum wires is put in evidence and shown to depend on the amount of material deposited. In addition, it is established that vertical correlation of successive nanostructure planes may also induce the dot-wire shape transition. Consistent with theoretical predictions, it is proposed that the shape transition results from an elastic energy minimization process made possible by an easy adatom diffusion along [11-20] direction.
doi_str_mv 10.1103/PhysRevB.79.035313
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source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects Condensed Matter
CORRELATIONS
DIFFUSION
FORECASTING
GALLIUM NITRIDES
LAYERS
MATERIALS SCIENCE
MINIMIZATION
Physics
QUANTUM DOTS
QUANTUM WIRES
SEMICONDUCTOR MATERIALS
WIRES
title Quantum dot to quantum wire transition of m -plane GaN islands
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