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 journalArticle

1 Citation (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 languageEnglish
Pages (from-to)967-969
Number of pages3
JournalApplied Physics Letters
Volume61
Issue number8
DOIs
Publication statusPublished - Dec 1 1992

Fingerprint

Josephson effect
thin films
niobium
infrared lasers
electric potential
curves

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Uzawa, Y., Kawate, E., Hirose, N., Motohashi, I., Harada, Y., Sekine, M., ... Okaji, M. (1992). Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz. Applied Physics Letters, 61(8), 967-969. https://doi.org/10.1063/1.108472

Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz. / Uzawa, Yoshinori; Kawate, Etsuo; Hirose, Nobumitsu; Motohashi, Isao; Harada, Yuichi; Sekine, Matsuo; Miki, Yukinobu; Okaji, Masahiro.

In: Applied Physics Letters, Vol. 61, No. 8, 01.12.1992, p. 967-969.

Research output: Contribution to journalArticle

Uzawa, Y, Kawate, E, Hirose, N, Motohashi, I, Harada, Y, Sekine, M, Miki, Y & Okaji, M 1992, 'Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz', Applied Physics Letters, vol. 61, no. 8, pp. 967-969. https://doi.org/10.1063/1.108472
Uzawa, Yoshinori ; Kawate, Etsuo ; Hirose, Nobumitsu ; Motohashi, Isao ; Harada, Yuichi ; Sekine, Matsuo ; Miki, Yukinobu ; Okaji, Masahiro. / Ac Josephson effect in superconducting all-Nb thin-film nanobridges up to 693 GHz. In: Applied Physics Letters. 1992 ; Vol. 61, No. 8. pp. 967-969.
@article{ea1b4ffa72ae465382306f4f814bb10b,
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",
month = "12",
day = "1",
doi = "10.1063/1.108472",
language = "English",
volume = "61",
pages = "967--969",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "8",

}

TY - JOUR

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 - 1992/12/1

Y1 - 1992/12/1

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.

UR - http://www.scopus.com/inward/record.url?scp=36449000476&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36449000476&partnerID=8YFLogxK

U2 - 10.1063/1.108472

DO - 10.1063/1.108472

M3 - Article

AN - SCOPUS:36449000476

VL - 61

SP - 967

EP - 969

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 8

ER -