Journal Article

FZJ-2013-04800

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Realization of nanoscaled tubular conductors by means of GaAs/InAs core/shell nanowires

Blömers, C. (Corresponding author)FZJ* ; Rieger, T.FZJ* ; Zellekens, P.FZJ* ; Haas, F.FZJ* ; Lepsa, M. I.FZJ* ; Hardtdegen, H.FZJ* ; Gül, ö. ; Demarina, N.FZJ* ; Grützmacher, D.FZJ* ; Lüth, H.FZJ* ; Schäpers, T.FZJ*

2013
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/0957-4484/24/3/035203

Abstract: We investigated the transport properties of GaAs/InAs core/shell nanowires grown by molecular beam epitaxy. Owing to the band alignment between GaAs and InAs, electrons are accumulated in the InAs shell as long as the shell thickness exceeds 12 nm. By performing simulations using a Schrödinger–Poisson solver, it is confirmed that confined states are present in the InAs shell, which are depleted if the shell thickness is below a threshold value. The existence of a tubular-shaped conductor is proved by performing magnetoconductance measurements at low temperatures. Here, flux periodic conductance oscillations are observed which can be attributed to transport in one-dimensional channels based on angular momentum states.

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. JARA-FIT (JARA-FIT)

Research Program(s):

1. 422 - Spin-based and quantum information (POF2-422) (POF2-422)

Appears in the scientific report 2013

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Database coverage:
; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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