Quantum dots fabricated by twofold cleaved edge overgrowth

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.10862

Schedelbeck, Gert ; Wegscheider, Werner ; Rother, Martin ; Glutsch, S. ; Bichler, Max ; Abstreiter, Gerhard

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Veröffentlichungsdatum dieses Volltextes: 09 Nov 2009 13:05

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Zusammenfassung

Cleaved edge overgrowth (CEO) has proven to be a powerful technique for the fabrication of atomic scale T-shaped quantum wires (QWRs) which form at the intersection of two quantum wells (QWs). Here we report on the first experimental demonstration of quantum dots (QDs) which result when three QWs intersect each other at right angles. Optical emission from zero-dimensional (0D) states in these QDs ...