Accession Number:

AD0654543

Title:

ON THE INTRINSIC RESISTIVE TRANSITION IN NARROW SUPERCONDUCTING CHANNELS.

Descriptive Note:

Technical rept.,

Corporate Author:

CORNELL UNIV ITHACA N Y LAB OF ATOMIC AND SOLID STATE PHYSICS

Personal Author(s):

Report Date:

1967-06-01

Pagination or Media Count:

59.0

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

Subject Categories:

  • Electricity and Magnetism
  • Solid State Physics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE