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    题名: Nb lateral Josephson junctions induced by a NiFe cross strip
    作者: Lin, L. K.;Huang, S. Y.;Huang, J. H.;Lee, S. F.
    李尚凡
    贡献者: 應物所
    日期: 2012.12
    上传时间: 2014-03-05 17:53:17 (UTC+8)
    摘要: We fabricated lateral junctions by crossing superconductingNb strips in metallic contact with a ferromagnetic NiFe strip. Transport measurements on the Nb lateral junctions exhibit modulations of the critical current with a varying perpendicular magnetic field similar to a Fraunhofer interference pattern, which demonstrates the dc Josephson effect. The modulations of the critical current could be attributed to an effective weak link embedded in the Nb strip and formed a Josephson junction. Appearance of Shapiro steps on the current-voltage curves of these junctions when microwaves irradiation is applied proves the ac Josephson effect. The underlying physics of the effective weak link induced by the NiFe strip is discussed.
    關聯: Applied Physics Letters, 101(24), 242601
    資料來源: http://dx.doi.org/10.1063/1.4770302
    数据类型: article
    显示于类别:[應用物理研究所 ] 期刊論文

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