Spatial ordering of stacked quantum dots

We investigate the growth conditions necessary to form an ordered quantum dot crystal by capping spatially ordered quantum dots and growing a new layer of dots on top of the capping layer. Performing Monte Carlo simulations and developing analytic arguments based on the stress energy function, we demonstrate the existence of an optimal capping layer thickness, external flux, and temperature for the formation of quantum dot crystals.


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A.-L. Barabási, R. Bourbonnais, M. Jensen, J. Kertesz, T. Vicsek, Y.-C. Zhang

Physical Review A 45, R6951–R6954 (1992)

S. V. Buldyrev, L.A.N. Amaral, A.-L. Barabási, S.T. Harrington, S. Havlin, R. Sadr-Lahijani, H.E. Stanley

Fractals 4, 307–319 (1996)

P. Jensen, A.-L. Barabási, H. Larralde, S. Havlin, H.E. Stanley

Fractals 4, 321–329 (1996)