Magnetization-Controlled Transport Critical Current in Ferromagnet/Superconductor/Ferromagnet Trilayers

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概要

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• We have investigated the influence of the ferromagnet magnetization on the transport critical-current density J_c in ferromagnel (Co)/superconductor (Nb)/ferromagnet (Co) trilayers under applied fields parallel to the film surface. Irrespective of field polarity, the pronounced peak of J_c was observed below the lower critical field H_<cl>, in contrast to usual monotonic decrease of J_c with field. We find that the position of the minimum in J_c appearing around zero field, is dependent on the sweep direction of the applied field. These results can be explained by the pair-breaking effect that is controlled by the relative alignment between the applied field and the in-plane magnetization of the Co layer.

• 社団法人日本物理学会の論文
• 2003-04-15

著者

• Itoh F

  Department Of Electronic Engineering Gunma University

• Itoh Fumitake

  Department Of Electric Engineering Faculty Of Engineering Gunma University

• Kobayashi Satoru

  Satellite Venture Business Laboratory Gun Ma University

• Itoh Fumitake

  Department of Electronic Engineering, Gunma University

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• Magnetization-Controlled Transport Critical Current in Ferromagnet/Superconductor/Ferromagnet Trilayers
• Magnetization-Controlled Transport Critical Current in Ferromagnet/Superconductor/Ferromagnet Trilayers

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