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Nb-Ti Composite Wires with Artificial Ferromagnetic Pins

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Advances in Cryogenic Engineering Materials

Part of the book series: Advances in Cryogenic Engineering ((ACRE,volume 42))

Abstract

Flux-pinning data for Nb47Ti/Fe and Nb55Ti/Ni composites indicate that ferro-magnets pin by a barrier mechanism similar to the mechanism studied by Clem for superconductor/insulator multilayers. However, in contrast to Clem’s model, the optimum pin separation should be rather large, because at smaller pin separations the condition |ψ|2 = 0 at the superconductor/ferromagnet interface leads to a reduction of T c and H c2 . Nonetheless, we find no indication in the experimental data that pin separations much smaller than the predicted optimum value adversely affect J c, T c, or H c2.

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References

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Author information

Authors and Affiliations

  1. Electromagnetic Technology Division, NIST, 325 Broadway, Boulder, CO, 80303, USA

    L. D. Cooley

  2. Teledyne Wah Chang, PO Box 420, Albany, OR, 97321, USA

    P. D. Jablonski

  3. Applied Superconductivity Center, University of Wisconsin-Madison, 1500 Johnson Drive, Madison, WI, 53706, USA

    R. W. Heussner

  4. Depts. of Physics and Materials Science, University of Wisconsin-Madison, Madison, WI, 53706, USA

    D. C. Larbalestier

Authors
  1. L. D. Cooley
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  2. P. D. Jablonski
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  3. R. W. Heussner
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  4. D. C. Larbalestier
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Editor information

Editors and Affiliations

  1. Lawrence Livermore National Laboratory, University of California, Livermore, California, USA

    Leonard T. Summers

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© 1996 Springer Science+Business Media New York

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Cooley, L.D., Jablonski, P.D., Heussner, R.W., Larbalestier, D.C. (1996). Nb-Ti Composite Wires with Artificial Ferromagnetic Pins. In: Summers, L.T. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering Materials , vol 42. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9059-7_143

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  • DOI: https://doi.org/10.1007/978-1-4757-9059-7_143

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4757-9061-0

  • Online ISBN: 978-1-4757-9059-7

  • eBook Packages: Springer Book Archive

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