Ordered array of Ga droplets on GaAs(001) by local anodic oxidation

Abstract

The authors present a procedure to obtain uniform, ordered arrays of Ga droplets on GaAs(001) substrates. The growth process relies on an interplay between the substrate patterning, in form of a two dimensional array of nanoholes periodically modulated obtained via local anodic oxidation, and self-assembly of Ga droplets in a molecular beam epitaxy environment. The formation of site controlled Ga droplets, characterized by atomic force microscopy, is the outcome of the combined effects of capillary condensation and nucleation kinetics.

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Item Type:	Article
Authors/Creators:	Sala, E.M. https://orcid.org/0000-0001-8116-8830 Bollani, M. Bietti, S. Fedorov, A. Esposito, L. Sanguinetti, S.
Copyright, Publisher and Additional Information:	© 2014 American Vacuum Society
Dates:	Accepted: 22 October 2014 Published (online): 4 November 2014 Published: November 2014
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	28 Nov 2019 17:03
Last Modified:	28 Nov 2019 17:03
Status:	Published
Publisher:	AIP Publishing
Refereed:	Yes
Identification Number:	10.1116/1.4901017
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:154002

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Ordered array of Ga droplets on GaAs(001) by local anodic oxidation

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