Magnetization Relaxation and Resistive Behaviour of High-Tc Superconductors

  • R. Griessen
  • R. J. Wijngaarden
  • B. Dam
Conference paper


From the analysis of magnetization relaxation data on various types of samples and Monte- Carlo calculations Hagen and Griessen concluded that the existing experimental data can be understood in terms of a model which incorporates a distribution m(U*) of activation energies for thermally activated flux motion. This model is extended to include flux-flow in order to reproduce the characteristic features of current-voltage curves of high-Tc superconductors. In particular the recent data of Koch et al. and Zeldov et al. can be explained without invoking a continuous phase transition (freezing into a superconducting vortex-glass phase) or a logarithmic current dependence of the activation energy.


Activation Energy Resistive Behavior Continuous Phase Transition Large Activation Energy Dependent Activation Energy 
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Copyright information

© Springer Japan 1990

Authors and Affiliations

  • R. Griessen
    • 1
  • R. J. Wijngaarden
    • 1
  • B. Dam
    • 2
  1. 1.Natuurkundig LaboratoriumVrije UniversiteitAmsterdamThe Netherlands
  2. 2.Natuurkundig LaboratoriumPhilipsEindhovenThe Netherlands

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