Flux-Pinning Effect by Ferromagnetic Overlayer on Superconducting Niobium

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概要

• 論文の詳細を見る

• The pinning effect of a ferromagnetic substance on superconducting fluxoids has been investigated. Two kinds of ferromagnetics (mu-metal and γ-hematite (the sound tape) were shaped in thin narrow bands (〜45 μm, t.×0.3 mm, w) and overlayed on the top surface of a niobium disc (2 mm, dia.×0.5 mm, t). A magneto-optical observation was carried out on the sample surface at 4.7 K with an external magnetic field of 0 to 1 kOe; it was demonstrated that the propagation of the flux density distributions from the sample edge was evidently depressed upon crossing the mu-metal band, but hardly effected by the hematite. The estimated pinning force at 2×10^<-1> dyne/cm of the mu-metal band can be accounted for by the measured magnetization of the band.

• 社団法人応用物理学会の論文
• 1987-09-20

著者

• Aoki Ryozo

  Kyushu University 33 Department Of Physics

• HABERMEIER Hans.U.

  Institut fur Physik am Max-Planck Institut fur Metallforschung

• Habermeier Hans.u.

  Institut Fur Physik Am Max-planck Institut Fur Metallforschung:(present Address) Max-planck Institut

関連論文

• Flux-Pinning Effect by Ferromagnetic Overlayer on Superconducting Niobium

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