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Journal of Low Temperature Physics

, Volume 118, Issue 5–6, pp 671–678 | Cite as

Shot Noise Measurements in Diffusive Normal Metal-Superconductor (N-S) Junctions

  • A. A. Kozhevnikov
  • R. J. Schoelkopf
  • L. E. Calvet
  • M. J. Rooks
  • D. E. Prober
Article

Abstract

We report on the measurements of non-equilibrium noise indiffusive normal metal-superconductor (N-S) junctions. Weobserve that at bias voltages less than the gap voltage theshot noise is doubled compared to the normal diffusiveconductor, in agreement with theoretical predictions. We alsoobserve that the crossover from the thermal to shot noiseoccurs at bias voltages smaller than for the normal conductor,in qualitative agreement with theory.

Keywords

Magnetic Material Theoretical Prediction Bias Voltage Noise Measurement Qualitative Agreement 
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Copyright information

© Plenum Publishing Corporation 2000

Authors and Affiliations

  • A. A. Kozhevnikov
    • 1
  • R. J. Schoelkopf
    • 1
  • L. E. Calvet
    • 1
  • M. J. Rooks
    • 2
  • D. E. Prober
    • 1
  1. 1.Departments of Physics and Applied PhysicsYale UniversityNew HavenUSA
  2. 2.IBM Watson Research CenterYorktown HeightsUSA

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