Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz

Yoshinori Uzawa; Etsuo Kawate; Nobumitsu Hirose; Isao Motohashi; Yuichi Harada; Matsuo Sekine; Yukinobu Miki; Masahiro Okaji

doi:10.1063/1.108472

Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz

Yoshinori Uzawa, Etsuo Kawate, Nobumitsu Hirose, Isao Motohashi, Yuichi Harada, Matsuo Sekine, Yukinobu Miki, Masahiro Okaji

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

2 Citations (Scopus)

Abstract

All-niobium thin-film nanobridges were fabricated with bridge sizes of 40-nm length, 50-nm width, and 100-nm thickness. We investigated the performance of the nanobridges by monitoring Shapiro steps induced on the current-voltage curves by an optically pumped far-infrared laser. These steps have been observed up to 693 GHz (433 μm). This is a twofold increase over that previously reported on thin-film nanobridges.

Original language	English
Pages (from-to)	967-969
Number of pages	3
Journal	Applied Physics Letters
Volume	61
Issue number	8
DOIs	https://doi.org/10.1063/1.108472
Publication status	Published - 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.108472

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title = "Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz",

abstract = "All-niobium thin-film nanobridges were fabricated with bridge sizes of 40-nm length, 50-nm width, and 100-nm thickness. We investigated the performance of the nanobridges by monitoring Shapiro steps induced on the current-voltage curves by an optically pumped far-infrared laser. These steps have been observed up to 693 GHz (433 μm). This is a twofold increase over that previously reported on thin-film nanobridges.",

author = "Yoshinori Uzawa and Etsuo Kawate and Nobumitsu Hirose and Isao Motohashi and Yuichi Harada and Matsuo Sekine and Yukinobu Miki and Masahiro Okaji",

year = "1992",

doi = "10.1063/1.108472",

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pages = "967--969",

journal = "Applied Physics Letters",

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T1 - Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz

AU - Uzawa, Yoshinori

AU - Kawate, Etsuo

AU - Hirose, Nobumitsu

AU - Motohashi, Isao

AU - Harada, Yuichi

AU - Sekine, Matsuo

AU - Miki, Yukinobu

AU - Okaji, Masahiro

PY - 1992

Y1 - 1992

N2 - All-niobium thin-film nanobridges were fabricated with bridge sizes of 40-nm length, 50-nm width, and 100-nm thickness. We investigated the performance of the nanobridges by monitoring Shapiro steps induced on the current-voltage curves by an optically pumped far-infrared laser. These steps have been observed up to 693 GHz (433 μm). This is a twofold increase over that previously reported on thin-film nanobridges.

AB - All-niobium thin-film nanobridges were fabricated with bridge sizes of 40-nm length, 50-nm width, and 100-nm thickness. We investigated the performance of the nanobridges by monitoring Shapiro steps induced on the current-voltage curves by an optically pumped far-infrared laser. These steps have been observed up to 693 GHz (433 μm). This is a twofold increase over that previously reported on thin-film nanobridges.

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DO - 10.1063/1.108472

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

ER -

Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz

Abstract

All Science Journal Classification (ASJC) codes

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