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Proximity effect in Fe/Pb/Fe trilayers

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Abstract:

We have studied superconducting and magnetic properties of sputtered Fe/Pb/Fe-trilayers. For a fixed Pb thickness dPb and with changing Fe thickness, dFe, a monotonic decrease of the superconducting transition temperature Tc was observed. Magnetization measurements clearly showed that Fe remains ferromagnetic down to the monolayer range. A quantitative comparison of Tc(dFe) with the theory of pair breaking by the exchange field reveals that the observed Tc-suppression by the ferromagnetic Fe-layer is much weaker than expected. Possible reasons for the reduced Tc-suppression in this system are discussed.

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Authors and Affiliations

  1. Kazan Physicotechnical Institute, Russian Academy of Sciences, 420029, Kazan, Russian Federation

    N.N. Garif'yanov, Y.V. Goryunov & I.A. Garifullin

  2. Institut für Experimentalphysik/Festkörperphysik, Ruhr-Universität Bochum, 44780, Bochum, Germany

    T. Mühge, L. Lazar, K. Westerholt & H. Zabel

  3. Max-Planck-Institut für Physik Komplexer Systeme, 01187, Dresden, Germany

    G.G. Khaliullin

Authors
  1. N.N. Garif'yanov
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  2. Y.V. Goryunov
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  3. T. Mühge
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  4. L. Lazar
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  5. G.G. Khaliullin
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  6. K. Westerholt
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  7. I.A. Garifullin
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  8. H. Zabel
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Additional information

Received: 30 June 1997 / Revised: 20 August 1997 / Accepted: 16 December 1997

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Garif'yanov, N., Goryunov, Y., Mühge, T. et al. Proximity effect in Fe/Pb/Fe trilayers. Eur. Phys. J. B 1, 405–407 (1998). https://doi.org/10.1007/s100510050203

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  • DOI: https://doi.org/10.1007/s100510050203

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