Flux Pinning in Y1Ba2Cu3O7-∂ Single Crystals

  • L. Fruchter
  • C. Giovannella
  • G. Collin
  • I. A. Campbell


We have recently shownl that magnetic torque is a very powerful tool to investigate flux creep in the new sintered high Tc superconducting perovskites. It has become clear2,3,4 that these materials behave as weak coupled superconducting grains. Flux pinning and creep have been reportedl at moderate fields (10 G < H < 10 kG) at which grains become independent.


Remanent Magnetization Periodic Signal Moderate Field Field Cool Flux Line 
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Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • L. Fruchter
    • 1
  • C. Giovannella
    • 2
  • G. Collin
    • 3
  • I. A. Campbell
    • 1
  1. 1.Physique des SolidesUniversite Paris SudOrsayFrance
  2. 2.Dip. di FisicaII Universita’ di RomaRomaItaly
  3. 3.UA200Université René DescartesParisFrance

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