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Journal Article | FZJ-2015-05142 |
; ; ;
2010
American Inst. of Physics
Melville, NY
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Please use a persistent id in citations: http://hdl.handle.net/2128/17315 doi:10.1063/1.3442508
Abstract: Magnetotunneling spectroscopy was employed to probe the confinement in vertical Si/Ge double-barrier resonant tunneling diodes with regularly distributed Gequantum dots. Their current-voltage characteristics reveal a steplike behavior in the vicinity of zero bias, indicating resonant tunneling of heavy-holes via three-dimensionally confined unoccupied hole states in Gequantum dots. Assuming parabolic confinement, we extract the strength of the confinement potential of quantum dots.
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