### 抄録

The effects of microshorts on the properties of Josephson tunnel junctions at a finite dc voltage are studied. The disturbance of the electromagnetic field by microshorts and the resulting dc current-voltage characteristics are calculated assuming the RSJ model for the microshorts. It is shown analytically that a microshort gives rise to a current which does not vanish even at a sufficiently high magnetic field, i.e., an excess current. It is also shown that the amplitude of the excess current depends strongly on the ratio of the microshort resistance to the junction impedance seen from the microshort. The observed magnetic-field dependence of the current-voltage characteristics of junctions showing excess currents is explained well by the present analysis.

元の言語 | 英語 |
---|---|

ページ（範囲） | 265-275 |

ページ数 | 11 |

ジャーナル | Japanese Journal of Applied Physics |

巻 | 20 |

発行部数 | 1 |

DOI | |

出版物ステータス | 出版済み - 1 1 1981 |

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### All Science Journal Classification (ASJC) codes

- Engineering(all)
- Physics and Astronomy(all)

### これを引用

*Japanese Journal of Applied Physics*,

*20*(1), 265-275. https://doi.org/10.1143/JJAP.20.265

**Effects of microshorts on current-voltage characteristics of josephson tunnel junctions.** / Enpuku, Keiji; Yoshida, Keiji; Hamasaki, Katsuyoshi; Irie, Fujio.

研究成果: ジャーナルへの寄稿 › 記事

*Japanese Journal of Applied Physics*, 巻. 20, 番号 1, pp. 265-275. https://doi.org/10.1143/JJAP.20.265

}

TY - JOUR

T1 - Effects of microshorts on current-voltage characteristics of josephson tunnel junctions

AU - Enpuku, Keiji

AU - Yoshida, Keiji

AU - Hamasaki, Katsuyoshi

AU - Irie, Fujio

PY - 1981/1/1

Y1 - 1981/1/1

N2 - The effects of microshorts on the properties of Josephson tunnel junctions at a finite dc voltage are studied. The disturbance of the electromagnetic field by microshorts and the resulting dc current-voltage characteristics are calculated assuming the RSJ model for the microshorts. It is shown analytically that a microshort gives rise to a current which does not vanish even at a sufficiently high magnetic field, i.e., an excess current. It is also shown that the amplitude of the excess current depends strongly on the ratio of the microshort resistance to the junction impedance seen from the microshort. The observed magnetic-field dependence of the current-voltage characteristics of junctions showing excess currents is explained well by the present analysis.

AB - The effects of microshorts on the properties of Josephson tunnel junctions at a finite dc voltage are studied. The disturbance of the electromagnetic field by microshorts and the resulting dc current-voltage characteristics are calculated assuming the RSJ model for the microshorts. It is shown analytically that a microshort gives rise to a current which does not vanish even at a sufficiently high magnetic field, i.e., an excess current. It is also shown that the amplitude of the excess current depends strongly on the ratio of the microshort resistance to the junction impedance seen from the microshort. The observed magnetic-field dependence of the current-voltage characteristics of junctions showing excess currents is explained well by the present analysis.

UR - http://www.scopus.com/inward/record.url?scp=0019436622&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0019436622&partnerID=8YFLogxK

U2 - 10.1143/JJAP.20.265

DO - 10.1143/JJAP.20.265

M3 - Article

VL - 20

SP - 265

EP - 275

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

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

SN - 0021-4922

IS - 1

ER -