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16 June 2010
Holed Nanostructures Formed by Aluminum Droplets on a GaAs Substrate
),
Zhiming M. Wang(
),
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We have studied the morphology evolution of holed nanostructures formed by aluminum droplet epitaxy on a GaAs surface. Unique outer rings with concentric inner holed rings were observed. Further, an empirical equation to describe the size distribution of the outer rings in the holed nanostructures has been established. The contour line generated by the equation provides physical insights into quantum ring formation by droplets of group Ⅲ materials on Ⅲ–Ⅴ substrates.
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Holed Nanostructures Formed by Aluminum Droplets on a GaAs Substrate
), Zhiming M. Wang(
),
Abstract
We have studied the morphology evolution of holed nanostructures formed by aluminum droplet epitaxy on a GaAs surface. Unique outer rings with concentric inner holed rings were observed. Further, an empirical equation to describe the size distribution of the outer rings in the holed nanostructures has been established. The contour line generated by the equation provides physical insights into quantum ring formation by droplets of group Ⅲ materials on Ⅲ–Ⅴ substrates.
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Acknowledgements
The authors gratefully acknowledge the financial support by the MRSEC Program of NSF Grant (DMR-0520550). The valuable comments of Tim Morgan are gratefully acknowledged.
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This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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