Revealing the band structure of InSb nanowires by high-field magnetotransport in the quasiballistic regime

Journal article (2016)

Authors

Florian Vigneau Laboratoire National des Champs Magnétiques Intenses (LNCMI)
Önder Gül Kavli institute of nanoscience Delft, QRD/Kouwenhoven Lab - QuTech Advanced Research Centre , QuTech Advanced Research Centre
Yann Michel Niquet CEA Grenoble, Université Grenoble Alpes
Diana Car Eindhoven University of Technology
Sébastien R. Plissard Université de Toulouse
Walter Escoffier Laboratoire National des Champs Magnétiques Intenses (LNCMI)
E.P.A.M. Bakkers Eindhoven University of Technology
Ivan Duchemin Université Grenoble Alpes, CEA Grenoble
Bertrand Raquet Laboratoire National des Champs Magnétiques Intenses (LNCMI)
Michel Goiran Laboratoire National des Champs Magnétiques Intenses (LNCMI)
Research Group
QRD/Kouwenhoven Lab (QuTech Advanced Research Centre) (TU Delft)
Copyright: © 2016 Florian Vigneau, Önder Gül, Yann Michel Niquet, Diana Car, Sebastien R. Plissard, Walter Escoffier, E.P.A.M. Bakkers, Ivan Duchemin, Bertrand Raquet, Michel Goiran
DOI: https://doi.org/10.1103/PhysRevB.94.235303
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Published Date

2016

Language

English

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Faculty

QuTech Advanced Research Centre

Department

Qubit Research Division

Research Group

QRD/Kouwenhoven Lab

Abstract

The charge transport properties of individual InSb nanowires based transistors are studied at 4.2 K in the quasiballistic regime. The energy level separations at zero magnetic field are extracted from a bias voltage spectroscopy. The magnetoconductance under a magnetic field applied perpendicularly to the nanowire axis is investigated up to 50 T. Owing to the magnetic reduction of the backscattering, the electronic states of the quasi-one-dimensional electron gas are revealed by Landauer-Büttiker conductance quantization. The results are compared to theoretical predictions revealing the spin and orbital degeneracy lifting. At sufficiently high magnetic field the measurements show the evolution to the quantum Hall effect regime with the formation of Landau orbits and conducting edge states.