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題名 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
貢獻者 應物所
日期 2012.12
上傳時間 5-三月-2014 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
資料類型 article
dc.contributor 應物所en_US
dc.creator (作者) Lin, L. K. ; Huang, S. Y. ; Huang, J. H. ; Lee, S. F.en_US
dc.creator (作者) 李尚凡zh_TW
dc.date (日期) 2012.12en_US
dc.date.accessioned 5-三月-2014 17:53:17 (UTC+8)-
dc.date.available 5-三月-2014 17:53:17 (UTC+8)-
dc.date.issued (上傳時間) 5-三月-2014 17:53:17 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/64468-
dc.description.abstract (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.en_US
dc.format.extent 1558452 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) Applied Physics Letters, 101(24), 242601en_US
dc.source.uri (資料來源) http://dx.doi.org/10.1063/1.4770302en_US
dc.title (題名) Nb lateral Josephson junctions induced by a NiFe cross stripen_US
dc.type (資料類型) articleen