Asymmetric Little–Parks oscillations in full shell double nanowires

Abstract Little–Parks oscillations of a hollow superconducting cylinder are of interest for flux-driven topological superconductivity in single Rashba nanowires. The oscillations are typically symmetric in the orientation of the applied magnetic flux. Using double InAs nanowires coated by an epitaxi...

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Autores principales:	Alexandros Vekris, Juan Carlos Estrada Saldaña, Joeri de Bruijckere, Sara Lorić, Thomas Kanne, Mikelis Marnauza, Dags Olsteins, Jesper Nygård, Kasper Grove-Rasmussen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/738d125287c74871ac015ae68c87f650
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spelling	oai:doaj.org-article:738d125287c74871ac015ae68c87f6502021-12-02T18:13:45ZAsymmetric Little–Parks oscillations in full shell double nanowires10.1038/s41598-021-97780-92045-2322https://doaj.org/article/738d125287c74871ac015ae68c87f6502021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97780-9https://doaj.org/toc/2045-2322Abstract Little–Parks oscillations of a hollow superconducting cylinder are of interest for flux-driven topological superconductivity in single Rashba nanowires. The oscillations are typically symmetric in the orientation of the applied magnetic flux. Using double InAs nanowires coated by an epitaxial superconducting Al shell which, despite the non-centro-symmetric geometry, behaves effectively as one hollow cylinder, we demonstrate that a small misalignment of the applied parallel field with respect to the axis of the nanowires can produce field-asymmetric Little–Parks oscillations. These are revealed by the simultaneous application of a magnetic field perpendicular to the misaligned parallel field direction. The asymmetry occurs in both the destructive regime, in which superconductivity is destroyed for half-integer quanta of flux through the shell, and in the non-destructive regime, where superconductivity is depressed but not fully destroyed at these flux values.Alexandros VekrisJuan Carlos Estrada SaldañaJoeri de BruijckereSara LorićThomas KanneMikelis MarnauzaDags OlsteinsJesper NygårdKasper Grove-RasmussenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alexandros Vekris Juan Carlos Estrada Saldaña Joeri de Bruijckere Sara Lorić Thomas Kanne Mikelis Marnauza Dags Olsteins Jesper Nygård Kasper Grove-Rasmussen Asymmetric Little–Parks oscillations in full shell double nanowires
description	Abstract Little–Parks oscillations of a hollow superconducting cylinder are of interest for flux-driven topological superconductivity in single Rashba nanowires. The oscillations are typically symmetric in the orientation of the applied magnetic flux. Using double InAs nanowires coated by an epitaxial superconducting Al shell which, despite the non-centro-symmetric geometry, behaves effectively as one hollow cylinder, we demonstrate that a small misalignment of the applied parallel field with respect to the axis of the nanowires can produce field-asymmetric Little–Parks oscillations. These are revealed by the simultaneous application of a magnetic field perpendicular to the misaligned parallel field direction. The asymmetry occurs in both the destructive regime, in which superconductivity is destroyed for half-integer quanta of flux through the shell, and in the non-destructive regime, where superconductivity is depressed but not fully destroyed at these flux values.
format	article
author	Alexandros Vekris Juan Carlos Estrada Saldaña Joeri de Bruijckere Sara Lorić Thomas Kanne Mikelis Marnauza Dags Olsteins Jesper Nygård Kasper Grove-Rasmussen
author_facet	Alexandros Vekris Juan Carlos Estrada Saldaña Joeri de Bruijckere Sara Lorić Thomas Kanne Mikelis Marnauza Dags Olsteins Jesper Nygård Kasper Grove-Rasmussen
author_sort	Alexandros Vekris
title	Asymmetric Little–Parks oscillations in full shell double nanowires
title_short	Asymmetric Little–Parks oscillations in full shell double nanowires
title_full	Asymmetric Little–Parks oscillations in full shell double nanowires
title_fullStr	Asymmetric Little–Parks oscillations in full shell double nanowires
title_full_unstemmed	Asymmetric Little–Parks oscillations in full shell double nanowires
title_sort	asymmetric little–parks oscillations in full shell double nanowires
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/738d125287c74871ac015ae68c87f650
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Asymmetric Little–Parks oscillations in full shell double nanowires

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