Vortex Motion Modulated by a Self Field in a Large Josephson Junction

Keiji Enpuku, Keiji Yoshida, Fujio Irie, Katsuyoshi Hamasaki

研究成果: ジャーナルへの寄稿記事

10 引用 (Scopus)

抄録

Motion of a vortex array (flux flow) in a large Josephson junction is studied both theoretically and experimentally. An expression for dc current-voltage (I-V) characteristics of a large junction in a flux-flow state, which is caused by the external dc magnetic field and current, is obtained by taking account of the self field due to the dc current through the junction as well as the large loss due to the surface resistance of junction electrodes. It is shown that the spacially uniform flux flow is crucially modulated by the self field in a high-velocity region of the flux flow. As a result, the magnitude of the current peak in I–V curves decreases significantly and saturates with respect to both the length and the quality factor of the junction, which is confirmed by experiments with large Pb-PbxOy-Pb junctions.

元の言語英語
ページ(範囲)1973-1978
ページ数6
ジャーナルIEEE Transactions on Electron Devices
27
発行部数10
DOI
出版物ステータス出版済み - 1 1 1980

Fingerprint

Vortex flow
Fluxes
Surface resistance
Magnetic fields
Electrodes
Electric potential
Experiments

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

これを引用

Vortex Motion Modulated by a Self Field in a Large Josephson Junction. / Enpuku, Keiji; Yoshida, Keiji; Irie, Fujio; Hamasaki, Katsuyoshi.

:: IEEE Transactions on Electron Devices, 巻 27, 番号 10, 01.01.1980, p. 1973-1978.

研究成果: ジャーナルへの寄稿記事

Enpuku, Keiji ; Yoshida, Keiji ; Irie, Fujio ; Hamasaki, Katsuyoshi. / Vortex Motion Modulated by a Self Field in a Large Josephson Junction. :: IEEE Transactions on Electron Devices. 1980 ; 巻 27, 番号 10. pp. 1973-1978.
@article{48b5be8f7ac64b0f9e2acf3c8f56d6ad,
title = "Vortex Motion Modulated by a Self Field in a Large Josephson Junction",
abstract = "Motion of a vortex array (flux flow) in a large Josephson junction is studied both theoretically and experimentally. An expression for dc current-voltage (I-V) characteristics of a large junction in a flux-flow state, which is caused by the external dc magnetic field and current, is obtained by taking account of the self field due to the dc current through the junction as well as the large loss due to the surface resistance of junction electrodes. It is shown that the spacially uniform flux flow is crucially modulated by the self field in a high-velocity region of the flux flow. As a result, the magnitude of the current peak in I–V curves decreases significantly and saturates with respect to both the length and the quality factor of the junction, which is confirmed by experiments with large Pb-PbxOy-Pb junctions.",
author = "Keiji Enpuku and Keiji Yoshida and Fujio Irie and Katsuyoshi Hamasaki",
year = "1980",
month = "1",
day = "1",
doi = "10.1109/T-ED.1980.20134",
language = "English",
volume = "27",
pages = "1973--1978",
journal = "IEEE Transactions on Electron Devices",
issn = "0018-9383",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "10",

}

TY - JOUR

T1 - Vortex Motion Modulated by a Self Field in a Large Josephson Junction

AU - Enpuku, Keiji

AU - Yoshida, Keiji

AU - Irie, Fujio

AU - Hamasaki, Katsuyoshi

PY - 1980/1/1

Y1 - 1980/1/1

N2 - Motion of a vortex array (flux flow) in a large Josephson junction is studied both theoretically and experimentally. An expression for dc current-voltage (I-V) characteristics of a large junction in a flux-flow state, which is caused by the external dc magnetic field and current, is obtained by taking account of the self field due to the dc current through the junction as well as the large loss due to the surface resistance of junction electrodes. It is shown that the spacially uniform flux flow is crucially modulated by the self field in a high-velocity region of the flux flow. As a result, the magnitude of the current peak in I–V curves decreases significantly and saturates with respect to both the length and the quality factor of the junction, which is confirmed by experiments with large Pb-PbxOy-Pb junctions.

AB - Motion of a vortex array (flux flow) in a large Josephson junction is studied both theoretically and experimentally. An expression for dc current-voltage (I-V) characteristics of a large junction in a flux-flow state, which is caused by the external dc magnetic field and current, is obtained by taking account of the self field due to the dc current through the junction as well as the large loss due to the surface resistance of junction electrodes. It is shown that the spacially uniform flux flow is crucially modulated by the self field in a high-velocity region of the flux flow. As a result, the magnitude of the current peak in I–V curves decreases significantly and saturates with respect to both the length and the quality factor of the junction, which is confirmed by experiments with large Pb-PbxOy-Pb junctions.

UR - http://www.scopus.com/inward/record.url?scp=0019069390&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0019069390&partnerID=8YFLogxK

U2 - 10.1109/T-ED.1980.20134

DO - 10.1109/T-ED.1980.20134

M3 - Article

VL - 27

SP - 1973

EP - 1978

JO - IEEE Transactions on Electron Devices

JF - IEEE Transactions on Electron Devices

SN - 0018-9383

IS - 10

ER -