Submillimeter-wave response of nb-ybacuo point-contact josephson junctions using ybacuo thin films prepared by cvd

Syozo Imai; Nobuhiro Sugawara; Kazushige Sumiya; Kimihiko Ito; Nobuo Mikoshiba; Hisanori Yamane; Toshio Hirai; Hideyuki Kurosawa; Tsutomu Yamashita

doi:10.1143/JJAP.29.L1778

Submillimeter-wave response of nb-ybacuo point-contact josephson junctions using ybacuo thin films prepared by cvd

Syozo Imai, Nobuhiro Sugawara, Kazushige Sumiya, Kimihiko Ito, Nobuo Mikoshiba, Hisanori Yamane, Toshio Hirai, Hideyuki Kurosawa, Tsutomu Yamashita

Division of Inorganic Material Research

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

2 Citations (Scopus)

Abstract

The Shapiro steps in the submillimeter wave (SMMW) region were measured in point-contact Josephson junctions made of a Nb strip with a sharpened edge and a YBaCuO thin film. The thin film was prepared by the chemical vapor deposition (CVD) method. The dependence of the Shapiro step width on the SMMW power was measured for the wavelength of 570.6 µm (525.4 GHz). The dependence was similar to that found in microbridges made of low T_csuperconductors. The first-order Shapiro step was observed for the wavelength of 232.9 µm (1.287 THz).

Original language	English
Pages (from-to)	L1778-L1780
Journal	Japanese journal of applied physics
Volume	29
Issue number	10
DOIs	https://doi.org/10.1143/JJAP.29.L1778
Publication status	Published - 1990 Oct

Keywords

CVD
High-7c superconductor
Shapiro step
Submillimeter wave

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.29.L1778

Cite this

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title = "Submillimeter-wave response of nb-ybacuo point-contact josephson junctions using ybacuo thin films prepared by cvd",

abstract = "The Shapiro steps in the submillimeter wave (SMMW) region were measured in point-contact Josephson junctions made of a Nb strip with a sharpened edge and a YBaCuO thin film. The thin film was prepared by the chemical vapor deposition (CVD) method. The dependence of the Shapiro step width on the SMMW power was measured for the wavelength of 570.6 µm (525.4 GHz). The dependence was similar to that found in microbridges made of low Tcsuperconductors. The first-order Shapiro step was observed for the wavelength of 232.9 µm (1.287 THz).",

keywords = "CVD, High-7c superconductor, Shapiro step, Submillimeter wave",

author = "Syozo Imai and Nobuhiro Sugawara and Kazushige Sumiya and Kimihiko Ito and Nobuo Mikoshiba and Hisanori Yamane and Toshio Hirai and Hideyuki Kurosawa and Tsutomu Yamashita",

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doi = "10.1143/JJAP.29.L1778",

language = "English",

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T1 - Submillimeter-wave response of nb-ybacuo point-contact josephson junctions using ybacuo thin films prepared by cvd

AU - Imai, Syozo

AU - Sugawara, Nobuhiro

AU - Sumiya, Kazushige

AU - Ito, Kimihiko

AU - Mikoshiba, Nobuo

AU - Yamane, Hisanori

AU - Hirai, Toshio

AU - Kurosawa, Hideyuki

AU - Yamashita, Tsutomu

PY - 1990/10

Y1 - 1990/10

N2 - The Shapiro steps in the submillimeter wave (SMMW) region were measured in point-contact Josephson junctions made of a Nb strip with a sharpened edge and a YBaCuO thin film. The thin film was prepared by the chemical vapor deposition (CVD) method. The dependence of the Shapiro step width on the SMMW power was measured for the wavelength of 570.6 µm (525.4 GHz). The dependence was similar to that found in microbridges made of low Tcsuperconductors. The first-order Shapiro step was observed for the wavelength of 232.9 µm (1.287 THz).

AB - The Shapiro steps in the submillimeter wave (SMMW) region were measured in point-contact Josephson junctions made of a Nb strip with a sharpened edge and a YBaCuO thin film. The thin film was prepared by the chemical vapor deposition (CVD) method. The dependence of the Shapiro step width on the SMMW power was measured for the wavelength of 570.6 µm (525.4 GHz). The dependence was similar to that found in microbridges made of low Tcsuperconductors. The first-order Shapiro step was observed for the wavelength of 232.9 µm (1.287 THz).

KW - CVD

KW - High-7c superconductor

KW - Shapiro step

KW - Submillimeter wave

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JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

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Submillimeter-wave response of nb-ybacuo point-contact josephson junctions using ybacuo thin films prepared by cvd

Abstract

Keywords

ASJC Scopus subject areas

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