Subharmonic Gap Structure Observed in a Series Array of Thin-Film Josephson Junctions

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概要

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• The subharmonic gap structure was observed as a striking conductance depression effect in a series array of eleven Josephson junctions. Each element is a type of short superconducting weak-link comprising microshorts in an oxide layer sandwiched between two niobium film electrodes. The experimental observation implied that the ac Josephson effect significantly raised the strong structure at the voltage: V=N2Δ/ne, where N is a cascade number (N=11), and the integer n means the n-th subharmonic gap structure.

• 社団法人応用物理学会の論文
• 1986-08-20

著者

• Matsui Toshiaki

  Radio Research Laboratory Ministry Of Posts And Telecommunications

• Hayashi Risao

  Radio Research Laboratory Ministry Of Posts And Telecommunications

• OHTA Hiroshi

  The Institute of Physical and Chemical Research

関連論文

• A Voltage Bias Method for Studying the AC Josephson Effect at High Frequencies and for Application to Mixers
• Subharmonic Gap Structure Observed in a Series Array of Thin-Film Josephson Junctions

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