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Enhanced elastic interactions between conical quantum dots
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) Normalized radial surface traction, , at the dot/substrate interface for conical dots of different aspect ratios, (0.6°), 0.1 (5.7°), and 1.0 (45°), calculated using a finite element package. Also shown are the small slope approximation (1) and the proposed fitting function (2).

Image of FIG. 2.
FIG. 2.

(Color online) Elastic interaction between identical dots, , for different values of the dot slope . When the dots are remote from one another. When the dots are touching. The result of Shchukin et al. (Ref. 15) coincides with .

Image of FIG. 3.
FIG. 3.

(Color online) Stability phase diagram for different dot slopes showing the critical basal radius as a function of the surface coverage . The region of metastability is to the right of each boundary, the unstable region is to the left. The metastable region predicted by Shchukin et al. (Ref. 15) is small. This is greatly increased by the inclusion of large slope and large interaction effects. The maximum surface coverage, , is indicated by the vertical line.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced elastic interactions between conical quantum dots