Journal Article

FZJ-2022-01697

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Te-doped selective-area grown InAs nanowires for superconducting hybrid devices

Perla, P.FZJ* ; Faustmann, A.FZJ* ; Kölling, S. ; Zellekens, P.FZJ* ; Deacon, R. ; Aruni Fonseka, H. ; Kölzer, J.FZJ* ; Sato, Y. ; Sanchez, A. M. ; Moutanabbir, O. ; Ishibashi, K. ; Grützmacher, D.FZJ* ; Lepsa, M. I.FZJ* ; Schäpers, T. (Corresponding author)FZJ*

2022
APS College Park, MD

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Please use a persistent id in citations: http://hdl.handle.net/2128/30856  doi:10.1103/PhysRevMaterials.6.024602

Abstract: Semiconductor nanowires have emerged as versatile components in superconducting hybrid devices forMajorana physics and quantum computing. The transport properties of nanowires can be tuned either by fieldeffect or doping. We investigated a series of InAs nanowires the conductivity of which has been modified byn-type doping using tellurium. In addition to electron microscopy studies, the wires were also examined withatomic probe tomography to obtain information about the local incorporation of Te atoms. It was found thatthe Te atoms mainly accumulate in the core of the nanowire and at the corners of the {110} side facets. Theefficiency of n-type doping was also confirmed by transport measurements. As a demonstrator hybrid device, aJosephson junction was fabricated using a nanowire as a weak link. The corresponding measurements showed aclear increase of the critical current with increase of the dopant concentration.

Keyword(s): Information and Communication (1st) ; Condensed Matter Physics (2nd)

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. JARA Institut Green IT (PGI-10)

Research Program(s):

1. 5222 - Exploratory Qubits (POF4-522) (POF4-522)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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