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

Kota Kato; Tasuku Takagi; Takasumi Tanabe; Satoshi Moriyama; Yoshifumi Morita; Hideyuki Maki

doi:10.1038/s41598-020-71218-0

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

Kota Kato, Tasuku Takagi, Takasumi Tanabe, Satoshi Moriyama, Yoshifumi Morita, Hideyuki Maki

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

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.

Original language	English
Article number	14278
Journal	Scientific reports
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41598-020-71218-0
Publication status	Published - 2020 Dec 1

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

abstract = "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.",

author = "Kota Kato and Tasuku Takagi and Takasumi Tanabe and Satoshi Moriyama and Yoshifumi Morita and Hideyuki Maki",

note = "Funding Information: This work was partially supported by PRESTO (Grant Number JPMJPR152B) from JST, a project of Kanagawa Institute of Industrial Science and Technology (KISTEC), KAKENHI (Grant Numbers 16H04355, 18K19025 and 20H02210) and Core-to-Core program from JSPS, Spintronics Research Network of Japan, and NIMS Nanofabrication Platform in Nanotechnology Platform Project by MEXT. Publisher Copyright: {\textcopyright} 2020, The Author(s).",

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doi = "10.1038/s41598-020-71218-0",

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AU - Kato, Kota

AU - Takagi, Tasuku

AU - Tanabe, Takasumi

AU - Moriyama, Satoshi

AU - Morita, Yoshifumi

AU - Maki, Hideyuki

N1 - Funding Information: This work was partially supported by PRESTO (Grant Number JPMJPR152B) from JST, a project of Kanagawa Institute of Industrial Science and Technology (KISTEC), KAKENHI (Grant Numbers 16H04355, 18K19025 and 20H02210) and Core-to-Core program from JSPS, Spintronics Research Network of Japan, and NIMS Nanofabrication Platform in Nanotechnology Platform Project by MEXT. Publisher Copyright: © 2020, The Author(s).

PY - 2020/12/1

Y1 - 2020/12/1

N2 - 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.

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

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