Abstract
The dissipation in the high Tc ceramic superconductor La 1.85Sr0.15CuO4- delta is interpreted in terms of interacting magnetic flux systems: vortices in the ceramic grains and fluxons between them. In zero field cooling experiments the dissipation shows a sin2 Theta dependence, where Theta is the angle between current and field. This result and the existence of an angle independent critical current are analyzed in the framework of a granular system where the dissipation is due to two contributions, one induced by movement of magnetic flux and the other associated to dissipation in the junctions.
Original language | English (US) |
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Article number | 061 |
Pages (from-to) | S276-S279 |
Journal | Superconductor Science and Technology |
Volume | 5 |
Issue number | 1S |
DOIs | |
State | Published - 1992 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Condensed Matter Physics
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry