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Forming delocalized intermediate states with realistic quantum dots
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10.1063/1.3691113
/content/aip/journal/jap/111/5/10.1063/1.3691113
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/5/10.1063/1.3691113
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Schematic of delocalized bands formed in identical QDs. (b) Escape of electrons from QDs in an applied field via thermal (1) or tunneling (2) processes. (c) Thermal relaxation processes in arrays of closely spaced realistic QDs. (d) Delocalization over a few QDs can be achieved in a cluster of closely spaced QDs.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Delocalized wavefunctions in identical QDs separated by 3 nm GaAs barriers. The top two curves are offset for clarity. The thick black line in all panels is 5 nm long. (b) Localized wavefunctions in nonidentical QDs separated by 3 nm barriers with σ = σ 0. (c) Localized wavefunctions in nonidentical QDs separated by 10 nm barriers with σ = σ 0/103.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Localization length plotted as a function of σ for 50 QDs separated by 3 nm barriers (circles) and 10 nm barriers (diamonds). The spatial extent is calculated using both a 10% (open) and 1% (solid) cut-off for the probability amplitude. (b) Localization length plotted as a function of barrier thickness for presently achievable values of the QD homogeneity (σ 0).

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/content/aip/journal/jap/111/5/10.1063/1.3691113
2012-03-08
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Forming delocalized intermediate states with realistic quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/5/10.1063/1.3691113
10.1063/1.3691113
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