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学術誌査読

10 被引用数 (Scopus)


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.

ジャーナルIEEE Transactions on Electron Devices
出版ステータス出版済み - 10月 1980

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学


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