Journal
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
Volume 40, Issue 3B, Pages 1857-1859Publisher
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.40.1857
Keywords
quantum dots; Aharonov-Bohm effect; rings; spectroscopy; self-organized growth
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A method is described which can be used to grow self-organized, nanoscopic InGaAs ring structures on GaAs substrate. Starting from self-organized InAs dots, the crucial step for the ring formation is a short annealing phase after the dots have been covered by a thin GaAs layer. Spectroscopic data are reviewed which show that the ring morphology can be preserved even after the InGaAs islands have been covered by additional cladding layers for the realization of electronically or optically active devices.
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