Strain-driven facet formation on self-assembled InAs islands on GaAs (311)A
Identifieur interne : 00C548 ( Main/Repository ); précédent : 00C547; suivant : 00C549Strain-driven facet formation on self-assembled InAs islands on GaAs (311)A
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Abstract
The shape of InAs three-dimensional islands grown on GaAs(311)A substrates by molecular-beam epitaxy was investigated by in situ scanning tunneling microscopy. The island is found to be laterally surrounded by (111)A and {110} facets together with a convex curved region close to the (100) facet. The top ridge of the islands is atomically resolved to be the most recently discovered high-index surface {11,5,2}. This observation points to the importance of the study of nanostructure growth on high-index surfaces and their characterization. © 2003 American Institute of Physics.
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<author><name sortKey="Salamo, G J" uniqKey="Salamo G">G. J. Salamo</name>
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<front><div type="abstract" xml:lang="en">The shape of InAs three-dimensional islands grown on GaAs(311)A substrates by molecular-beam epitaxy was investigated by in situ scanning tunneling microscopy. The island is found to be laterally surrounded by (111)A and {110} facets together with a convex curved region close to the (100) facet. The top ridge of the islands is atomically resolved to be the most recently discovered high-index surface {11,5,2}. This observation points to the importance of the study of nanostructure growth on high-index surfaces and their characterization. © 2003 American Institute of Physics.</div>
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