Conference Presentation (After Call)

FZJ-2024-01232

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Aharonov–Bohm–type oscillations in phase–pure core/shell GaAs/InAs nanowires

Basaric, F. (Corresponding author)FZJ* ; Faustmann, A.FZJ* ; Zimmermann, E.FZJ* ; Behner, G.FZJ* ; Pawlis, A.FZJ* ; Krause, C.FZJ* ; Lüth, H.FZJ* ; Grützmacher, D.FZJ* ; Schäpers, T.FZJ*

2023

Abstract: Epitaxially grown phase-pure GaAs/InAs core/shell nanowires offer uniformity in their electrical, mechanical and optical properties. Magnetotransport measurements were carried out at variable temperature regime and varying gate potential, under applied in-plane magnetic field. Pronounced Aharonov–Bohm–type oscillations in the conductance are observed for this nanowire type, featuring large oscillation amplitude for measurements under varying gate potential. Furthermore, measurements at varying temperature show robustness of these oscillations against high temperatures as a result of reduced disorder in the system. Finally, strong indications of quasi–ballistic transport regime could be recognised for this nanowire type.

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

Note: DFG Germany’s Excellence Strategy—Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1—390534769

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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 2023

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