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Active and Passive Electronic Components
Volume 15 (1993), Issue 3-4, Pages 165-175

Magnetic Shielding With High-Tc (YBa2Cu3O7-δ)1-xAgx Superconducting Tubes

1Institut de Physique Expérimentale, Université de Lausanne, Lausanne CH-1015, Switzerland
2Institut de Physique Nucléaire, Université de Lausanne, Lausanne CH-1015, Switzerland

Received 15 November 1992; Accepted 16 December 1992

Copyright © 1993 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We present typical results of experiments carried out in (YBaCuO)1-xAgx tubular samples, for different values of the silver concentration x, having in mind the possible use of this material as a magnetic shield. We measured the times governing the dynamics of magnetic flux penetration, on a microsecond time-scale, and tried to correlate them with d.c. measurements of the resistivity and the critical transport current density, using a simple theoretical model based on the flux-flow régime.