Josephson Current in Microbridges of YBa2Cu3O7-δThin Films Prepared by CVD

Tsutomu Yamashita, Masanori Era, Satoru Noge, Akinobu Irie, Hisanori Yamane, Toshio Hirai, Hideyuki Kurosawa, Toshiaki Matsui

研究成果: Article

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抜粋

Single crystallike microbridges are fabricated from YBa2Cu3O7-δthin films made by the CVD method. The thicknesses of the bridges range from 0.2 to 1 µm, and the width and length are both about 1 µm. The critical current densities of the bridges range from 104to 105A/cm2at 77 K in zero field. The bridges show clear ac and dc Josephson effects. The single bridges look like typical Josephson junctions, and all transport current in the bridges behaves like Josephson current. However, the temperature dependences of critical current density show Jc∝(1-T/Tc)3/2., the bridges behave like one-dimensional long superconductors.

元の言語English
ページ(範囲)74-78
ページ数5
ジャーナルJapanese journal of applied physics
29
発行部数1 R
DOI
出版物ステータスPublished - 1990 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

フィンガープリント Josephson Current in Microbridges of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>Thin Films Prepared by CVD' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Yamashita, T., Era, M., Noge, S., Irie, A., Yamane, H., Hirai, T., Kurosawa, H., & Matsui, T. (1990). Josephson Current in Microbridges of YBa2Cu3O7-δThin Films Prepared by CVD. Japanese journal of applied physics, 29(1 R), 74-78. https://doi.org/10.1143/JJAP.29.74