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

研究成果: Article査読

3 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号14278
ジャーナルScientific reports
10
1
DOI
出版ステータスPublished - 2020 12月 1

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