Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation

We study the manipulation of thermal/quantum phase slips (tPSs/qPSs) in ultra-thin niobium-nitride superconducting nanowires (scNW) grown on carbon-nanotube templates. These NWs exhibit resistive steps in current–voltage (I–V) characteristics, and the number of phase slip centers (PSCs) in an NW can...

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Autores principales: Kato, Kota, Takagi, Tasuku, Tanabe, Takasumi, Moriyama, Satoshi, Morita, Yoshifumi, Maki, Hideyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7459120/
https://www.ncbi.nlm.nih.gov/pubmed/32868862
http://dx.doi.org/10.1038/s41598-020-71218-0
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author Kato, Kota
Takagi, Tasuku
Tanabe, Takasumi
Moriyama, Satoshi
Morita, Yoshifumi
Maki, Hideyuki
author_facet Kato, Kota
Takagi, Tasuku
Tanabe, Takasumi
Moriyama, Satoshi
Morita, Yoshifumi
Maki, Hideyuki
author_sort Kato, Kota
collection PubMed
description We study the manipulation of thermal/quantum phase slips (tPSs/qPSs) in ultra-thin niobium-nitride superconducting nanowires (scNW) grown on carbon-nanotube templates. These NWs exhibit resistive steps in current–voltage (I–V) characteristics, and the number of phase slip centers (PSCs) in an NW can be tuned by the NW length. Under microwave (MW) radiation, emergence of each single PSC can be precisely controlled by varying the MW power. For thin and short scNW, a dip structure between the qPS-dominated low-temperature region and the tPS-dominated high-temperature region were observed owing to anti-proximity effect by electrodes.
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spelling pubmed-74591202020-09-01 Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation Kato, Kota Takagi, Tasuku Tanabe, Takasumi Moriyama, Satoshi Morita, Yoshifumi Maki, Hideyuki Sci Rep Article We study the manipulation of thermal/quantum phase slips (tPSs/qPSs) in ultra-thin niobium-nitride superconducting nanowires (scNW) grown on carbon-nanotube templates. These NWs exhibit resistive steps in current–voltage (I–V) characteristics, and the number of phase slip centers (PSCs) in an NW can be tuned by the NW length. Under microwave (MW) radiation, emergence of each single PSC can be precisely controlled by varying the MW power. For thin and short scNW, a dip structure between the qPS-dominated low-temperature region and the tPS-dominated high-temperature region were observed owing to anti-proximity effect by electrodes. Nature Publishing Group UK 2020-08-31 /pmc/articles/PMC7459120/ /pubmed/32868862 http://dx.doi.org/10.1038/s41598-020-71218-0 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Kato, Kota
Takagi, Tasuku
Tanabe, Takasumi
Moriyama, Satoshi
Morita, Yoshifumi
Maki, Hideyuki
Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation
title Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation
title_full Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation
title_fullStr Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation
title_full_unstemmed Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation
title_short Manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation
title_sort manipulation of phase slips in carbon-nanotube-templated niobium-nitride superconducting nanowires under microwave radiation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7459120/
https://www.ncbi.nlm.nih.gov/pubmed/32868862
http://dx.doi.org/10.1038/s41598-020-71218-0
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