Cherenkov resonances in vortex dissipation in superconductors
Journal Article
·
· Physical Review, B: Condensed Matter
- Universidad Autonoma de San Luis Potosi, Instituto de Fisica, A. Obregon 64, 78000 San Luis Potosi, SLP (Mexico)
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208 (United States)
When the velocity of vortices in a superconductor in the free flux flow regime exceeds the velocity of sound, each vortex produces Cherenkov radiation of sound waves. The velocity field of the lattice ions is localized on the Cherenkov cone, but the forces acting on the lattice are localized on the vortex positions. When the Cherenkov cone coincides with certain directions in the moving vortex lattice, the dissipation exhibits maxima. Since the direction of the Cherenkov cone is determined by the vortex velocity (electric field) one can expect a series of resonant peaks in the current-voltage characteristic at particular values of electric field. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 688036
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 17 Vol. 60; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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