| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-2231 - C8-2232 | |
| DOI | https://doi.org/10.1051/jphyscol:19888999 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-2231-C8-2232
DOI: 10.1051/jphyscol:19888999
1 IBM Research Division, Zürich Research Laboratory, 8803 Rüschlikon, Switzerland and ETH Zürich Institute for Intermediate Energy Physics, Paul Scherrer Institute, 5234 Villigen, Switzerland.
2 Department of Physics, University of California, Berkeley, CA 94720, U.S.A.
3 Physics Institute, University of Zürich, 8001 Zürich, Switzerland
J. Phys. Colloques 49 (1988) C8-2231-C8-2232
DOI: 10.1051/jphyscol:19888999
CRITICAL STATE MODEL FOR CUPRATE SUPERCONDUCTORS
A. M. Portis1, 2, M. Stalder3, G. Stefanicki3, F. Waldner3 et M. Warden31 IBM Research Division, Zürich Research Laboratory, 8803 Rüschlikon, Switzerland and ETH Zürich Institute for Intermediate Energy Physics, Paul Scherrer Institute, 5234 Villigen, Switzerland.
2 Department of Physics, University of California, Berkeley, CA 94720, U.S.A.
3 Physics Institute, University of Zürich, 8001 Zürich, Switzerland
Abstract
Microwave absorption in granular superconductors results from the motion of fluxons within Josephson junctions. Critical state development accounts for the sign reversals and absorption minima that have been observed when the magnetic field is modulated or scanned with the assumption that flux flow is proportional to the gradient of the flux density.