Evolution of buried semiconductor nanostructures and origin of stepped surface mounds during capping

G. Katsaros, A. Rastelli, M. Stoffel, G. Costantini, O. Schmidt, K. Kern, J. Tersoff, E. Müller, H. Von Känel, Applied Physics Letters 89 (2006).

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Abstract
The authors apply selective wet chemical etching and atomic force microscopy to reveal the three-dimensional shape of SiGeSi (001) islands after capping with Si. Although the "self-assembled quantum dots" remain practically unaffected by capping in the temperature range of 300-450 °C, significant morphological changes take place on the Si surface. At 450 °C, the morphology of the capping layer (Si matrix) evolves toward an intriguing semifacetted structure, which we call a "ziggurat," giving the misleading impression of a stepped SiGe island shape.
Publishing Year
Date Published
2006-01-01
Journal Title
Applied Physics Letters
Volume
89
Issue
25
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Katsaros G, Rastelli A, Stoffel M, et al. Evolution of buried semiconductor nanostructures and origin of stepped surface mounds during capping. Applied Physics Letters. 2006;89(25). doi:10.1063/1.2405876
Katsaros, G., Rastelli, A., Stoffel, M., Costantini, G., Schmidt, O., Kern, K., … Von Känel, H. (2006). Evolution of buried semiconductor nanostructures and origin of stepped surface mounds during capping. Applied Physics Letters, 89(25). https://doi.org/10.1063/1.2405876
Katsaros, Georgios, Armando Rastelli, Mathieu Stoffel, Giovanni Costantini, Oliver Schmidt, Klaus Kern, Jerry Tersoff, Elisabeth Müller, and Hans Von Känel. “Evolution of Buried Semiconductor Nanostructures and Origin of Stepped Surface Mounds during Capping.” Applied Physics Letters 89, no. 25 (2006). https://doi.org/10.1063/1.2405876.
G. Katsaros et al., “Evolution of buried semiconductor nanostructures and origin of stepped surface mounds during capping,” Applied Physics Letters, vol. 89, no. 25, 2006.
Katsaros G, Rastelli A, Stoffel M, Costantini G, Schmidt O, Kern K, Tersoff J, Müller E, Von Känel H. 2006. Evolution of buried semiconductor nanostructures and origin of stepped surface mounds during capping. Applied Physics Letters. 89(25).
Katsaros, Georgios, et al. “Evolution of Buried Semiconductor Nanostructures and Origin of Stepped Surface Mounds during Capping.” Applied Physics Letters, vol. 89, no. 25, American Institute of Physics, 2006, doi:10.1063/1.2405876.

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