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Título: | Morphological transformation of InyGa1−yAs islands, fabricated by Stranski–Krastanov growth |
Autor: | Lorke, Axel; Blossey, Ralf; García Martínez, Jorge Manuel CSIC ORCID CVN ; Bichler, M.; Abstreiter, G. | Palabras clave: | Dots Rings Stranski–Krastanov Self-organized Island Transformation |
Fecha de publicación: | 16-ene-2002 | Editor: | Elsevier | Citación: | Materials Science and Engineering B 88(2-3): 225-229 (2002) | Resumen: | A remarkable change in topology occurs when InyGa1−yAs quantum dots, grown by Stranski–Krastanov self-organization, are covered by a thin layer of GaAs. The nano-islands rearrange themselves to form volcano-like islands with distinct, ring-like features. The island topology can be preserved during overgrowth and thus used for the fabrication of ring-shaped quantum structures. The experimental data suggests that two mechanisms, diffusion and dewetting, are driving the transformation from dots to rings. | Descripción: | 5 páginas, 5 figuras. | Versión del editor: | http://dx.doi.org/10.1016/S0921-5107(01)00870-4 | URI: | http://hdl.handle.net/10261/32072 | DOI: | 10.1016/S0921-5107(01)00870-4 | ISSN: | 0921-5107 |
Aparece en las colecciones: | (IMN-CNM) Artículos |
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