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Nanosized Superconducting Constrictions in High Magnetic Fields

  • H. Suderow
  • E. Bascones
  • W. Belzig
  • S. Vieira
  • F. Guinea
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 547)

Abstract

Nanowires of lead between macroscopic electrodes can be produced experimentally by means of an STM. Magnetic fields higher than the critical field of the bulk may destroy the superconductivity in the electrodes, while the wire remains in the superconducting state[1]. The I-V characteristics can be described in terms of an effective gap and a pair breaking parameter, which depends on the field. The evolution of the order parameter, the density of states and the transport properties, as function of the applied field are experimentally and theoretically analyzed.

References

  1. 1.
    M. Poza, E. Bascones, J. G. Rodrigo, N. Agraït, S. Vieira and F. Guinea, Phys. Rev. B 58, 11173 (1998).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • H. Suderow
    • 1
  • E. Bascones
    • 2
  • W. Belzig
    • 3
  • S. Vieira
    • 1
  • F. Guinea
    • 2
  1. 1.Laboratorio de Bajas TemperaturasUniversidad Autonoma de MadridSpain
  2. 2.Instituto de Ciencia de Materiales de Madrid, CSICSpain
  3. 3.Theoretical PhysicsTU DelftNetherlands

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