Nonequilibrium Phenomena in Superconducting Phase-Slip Centers.

Abstract

This report presents the results of a study on the current-induced breakdown of superconductivity in a quasi-one-dimensional filament. This report has investigated the effects of a magnetic field H on nonequilibrium quasiparticle relaxation processes in superconductors by analyzing the I-V characteristics of long tin microbridges in a parallel field near T sub c(H). In the theoretical studies, using a generalized two-fluids picture to describe a quasi-one-dimensional superconductor near T sub c (for H equal 0), a heuristic derivation for a set of equations governing the temporal and spatial evolution of the charge imbalance (or branch imbalance) in the quasiparticles is provided. A novel consequence of the model is a prediction of intrinsic hysteresis in the dc current-voltage relation. The model also provides a convenient framework for dealing with ac effects in PSC's, including resonance and synchronization in systems of closely-spaced PSC's and microbridges.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1979
Accession Number
ADA078441

Entities

People

  • Alan M. Kadin

Organizations

  • Harvard University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Coefficients
  • Control Systems
  • Critical Temperature
  • Current Density
  • Detection
  • Detectors
  • Electromagnetic Fields
  • Geometry
  • Heat Transfer
  • Impedance
  • Laser Diodes
  • Low Voltage
  • Materials
  • Measurement
  • Orientation (Direction)
  • Quasiparticles
  • Resistance

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Superconducting Magnet Technology
  • Theoretical Analysis.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster