ON THE INTRINSIC RESISTIVE TRANSITION IN NARROW SUPERCONDUCTING CHANNELS.

Abstract

We present a theory of current-reducing fluctuations in narrow superconducting channels. The theory is based on the Ginzburg-Landau equation, and is constructed in analogy with the droplet model of the condensation of a supersaturated vapor. Our theory suggests that large and improbable fluctuations are important, and cause measurable departures from the mean-field critical current. The calculation leads to a concrete result for the intrinsic resistive transition. This transition is predicted to occur at a temperature slightly lower than the bulk transition temperature, and to have a width which is observable but smaller than those measured in recent experiments. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
AD0654543

Entities

People

  • James S. Langer
  • Vinay Ambegaokar

Organizations

  • Cornell Laboratory of Atomic and Solid State Physics

Tags

DTIC Thesaurus Topics

  • Concrete
  • Condensation
  • Critical Temperature
  • Equations
  • Glass Transition Temperature
  • Mathematics
  • Phase Transformations
  • Transition Temperature
  • Transitions

Fields of Study

  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Superconducting Magnet Technology
  • Theoretical Analysis.