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Evidence of Josephson Coupling in a Few-Layer Black Phosphorus Planar Josephson Junction
[Image: see text] Setting up strong Josephson coupling in van der Waals materials in close proximity to superconductors offers several opportunities both to inspect fundamental physics and to develop cryogenic quantum technologies. Here we show evidence of Josephson coupling in a planar few-layer bl...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8945388/ https://www.ncbi.nlm.nih.gov/pubmed/35099941 http://dx.doi.org/10.1021/acsnano.1c09315 |
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author | Telesio, Francesca Carrega, Matteo Cappelli, Giulio Iorio, Andrea Crippa, Alessandro Strambini, Elia Giazotto, Francesco Serrano-Ruiz, Manuel Peruzzini, Maurizio Heun, Stefan |
author_facet | Telesio, Francesca Carrega, Matteo Cappelli, Giulio Iorio, Andrea Crippa, Alessandro Strambini, Elia Giazotto, Francesco Serrano-Ruiz, Manuel Peruzzini, Maurizio Heun, Stefan |
author_sort | Telesio, Francesca |
collection | PubMed |
description | [Image: see text] Setting up strong Josephson coupling in van der Waals materials in close proximity to superconductors offers several opportunities both to inspect fundamental physics and to develop cryogenic quantum technologies. Here we show evidence of Josephson coupling in a planar few-layer black phosphorus junction. The planar geometry allows us to probe the junction behavior by means of external gates, at different carrier concentrations. Clear signatures of Josephson coupling are demonstrated by measuring supercurrent flow through the junction at milli-Kelvin temperatures. Manifestation of a Fraunhofer pattern with a transverse magnetic field is also reported, confirming the Josephson coupling. These findings represent evidence of proximity Josephson coupling in a planar junction based on a van der Waals material beyond graphene and will expedite further studies, exploiting the peculiar properties of exfoliated black phosphorus thin flakes. |
format | Online Article Text |
id | pubmed-8945388 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-89453882022-03-28 Evidence of Josephson Coupling in a Few-Layer Black Phosphorus Planar Josephson Junction Telesio, Francesca Carrega, Matteo Cappelli, Giulio Iorio, Andrea Crippa, Alessandro Strambini, Elia Giazotto, Francesco Serrano-Ruiz, Manuel Peruzzini, Maurizio Heun, Stefan ACS Nano [Image: see text] Setting up strong Josephson coupling in van der Waals materials in close proximity to superconductors offers several opportunities both to inspect fundamental physics and to develop cryogenic quantum technologies. Here we show evidence of Josephson coupling in a planar few-layer black phosphorus junction. The planar geometry allows us to probe the junction behavior by means of external gates, at different carrier concentrations. Clear signatures of Josephson coupling are demonstrated by measuring supercurrent flow through the junction at milli-Kelvin temperatures. Manifestation of a Fraunhofer pattern with a transverse magnetic field is also reported, confirming the Josephson coupling. These findings represent evidence of proximity Josephson coupling in a planar junction based on a van der Waals material beyond graphene and will expedite further studies, exploiting the peculiar properties of exfoliated black phosphorus thin flakes. American Chemical Society 2022-01-31 2022-03-22 /pmc/articles/PMC8945388/ /pubmed/35099941 http://dx.doi.org/10.1021/acsnano.1c09315 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Telesio, Francesca Carrega, Matteo Cappelli, Giulio Iorio, Andrea Crippa, Alessandro Strambini, Elia Giazotto, Francesco Serrano-Ruiz, Manuel Peruzzini, Maurizio Heun, Stefan Evidence of Josephson Coupling in a Few-Layer Black Phosphorus Planar Josephson Junction |
title | Evidence
of Josephson Coupling in a Few-Layer Black
Phosphorus Planar Josephson Junction |
title_full | Evidence
of Josephson Coupling in a Few-Layer Black
Phosphorus Planar Josephson Junction |
title_fullStr | Evidence
of Josephson Coupling in a Few-Layer Black
Phosphorus Planar Josephson Junction |
title_full_unstemmed | Evidence
of Josephson Coupling in a Few-Layer Black
Phosphorus Planar Josephson Junction |
title_short | Evidence
of Josephson Coupling in a Few-Layer Black
Phosphorus Planar Josephson Junction |
title_sort | evidence
of josephson coupling in a few-layer black
phosphorus planar josephson junction |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8945388/ https://www.ncbi.nlm.nih.gov/pubmed/35099941 http://dx.doi.org/10.1021/acsnano.1c09315 |
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