Study of Nb-based Josephson tunnel junctions

Azusa Matsuda, Takahiro Inamura, Haruo Yoshikiyo

研究成果: Article査読

18 被引用数 (Scopus)

抄録

Nb-based Josephson junctions are photographically fabricated with an improved lift-off method. Aging properties of Nb/Pb junctions are studied and the possible origin of aging was pointed out, using the shape dependence and IJ-H characteristics. The I-V characteristics of Nb/Pb junctions were analyzed quantitatively using a proximity effect model based on McMillan's tunneling model. Maximum Josephson current was calculated incorporating the strong coupling correction. Theory and experiment agreed well for both pair and quasiparticle density of states.

本文言語English
ページ(範囲)4310-4316
ページ数7
ジャーナルJournal of Applied Physics
51
8
DOI
出版ステータスPublished - 1980
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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