Universal critical current behavior and the fundamental properties of HTS cuprate superconductors
Event details
| Date | 30.09.2013 |
| Hour | 16:15 › 17:15 |
| Speaker | Prof. Jeffery Tallon, MacDiarmid Institute, New Zealand |
| Location | |
| Category | Conferences - Seminars |
This talk summarises the overall behavior of the critical current density, Jc, of practical YBCO conductors as it evolves across the phase diagram with doping and temperature. The variation is shown to be rooted in the thermodynamic properties. A universal behavior is found in which Jc varies only with the ratio of the superfluid density to the coherence length, a ground state property. But it also scales with several normal-state properties and it is most surprising that this should be so. These results are linked to the electron pairing mechanism and indicate certain lines of material design in order to further improve their properties.
Practical information
- General public
- Free
Organizer
- Section de Physique