article published Georgios Katsaros author 38DB5788-F248-11E8-B48F-1D18A9856A87 Jerry Tersoff author Mathieu Stoffel author Armando Rastelli author P Acosta Diaz author Gouranga Kar author Giovanni Costantini author Oliver Schmidt author Klaus Kern author When strained Stranski-Krastanow islands are used as &quot;self-assembled quantum dots,&quot; a key goal is to control the island position. Here we show that nanoscale grooves can control the nucleation of epitaxial Ge islands on Si(001), and can drive lateral motion of existing islands onto the grooves, even when the grooves are very narrow and shallow compared to the islands. A position centered on the groove minimizes energy. We use as prototype grooves the trenches which form naturally around islands. During coarsening, the shrinking islands move laterally to sit directly astride that trench. In subsequent growth, we demonstrate that islands nucleate on the &quot;empty trenches&quot; which remain on the surface after complete dissolution of the original islands. American Physical Society2008 10.1103/PhysRevLett.101.096103 1019 yes G. Katsaros <i>et al.</i>, “Positioning of strained islands by interaction with surface nanogrooves,” <i>Physical Review Letters</i>, vol. 101, no. 9. American Physical Society, 2008. Katsaros, G., Tersoff, J., Stoffel, M., Rastelli, A., Acosta Diaz, P., Kar, G., … Kern, K. (2008). Positioning of strained islands by interaction with surface nanogrooves. <i>Physical Review Letters</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevLett.101.096103">https://doi.org/10.1103/PhysRevLett.101.096103</a> G. Katsaros, J. Tersoff, M. Stoffel, A. Rastelli, P. Acosta Diaz, G. Kar, G. Costantini, O. Schmidt, K. Kern, Physical Review Letters 101 (2008). Katsaros, Georgios, Jerry Tersoff, Mathieu Stoffel, Armando Rastelli, P Acosta Diaz, Gouranga Kar, Giovanni Costantini, Oliver Schmidt, and Klaus Kern. “Positioning of Strained Islands by Interaction with Surface Nanogrooves.” <i>Physical Review Letters</i>. American Physical Society, 2008. <a href="https://doi.org/10.1103/PhysRevLett.101.096103">https://doi.org/10.1103/PhysRevLett.101.096103</a>. Katsaros G, Tersoff J, Stoffel M, et al. Positioning of strained islands by interaction with surface nanogrooves. <i>Physical Review Letters</i>. 2008;101(9). doi:<a href="https://doi.org/10.1103/PhysRevLett.101.096103">10.1103/PhysRevLett.101.096103</a> Katsaros G, Tersoff J, Stoffel M, Rastelli A, Acosta Diaz P, Kar G, Costantini G, Schmidt O, Kern K. 2008. Positioning of strained islands by interaction with surface nanogrooves. Physical Review Letters. 101(9). Katsaros, Georgios, et al. “Positioning of Strained Islands by Interaction with Surface Nanogrooves.” <i>Physical Review Letters</i>, vol. 101, no. 9, American Physical Society, 2008, doi:<a href="https://doi.org/10.1103/PhysRevLett.101.096103">10.1103/PhysRevLett.101.096103</a>. 17512018-12-11T11:53:49Z2021-01-12T06:52:58Z