Abstract
The superconducting state of mesoscopic square samples with two and four antidots is studied using the nonlinear Ginzburg-Landau (GL) theory. We found a qualitative difference in the nucleation of the superconducting state in samples with different number of antidots, which is related to the interplay of the different types of symmetry. The H-T phase diagram of these structures reveals an oscillatory behavior caused by the formation of different stable vortex configurations in these small clusters of pinning centers. A comparison with the experiment of H-T phase diagram is given.
Original language | English |
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Pages (from-to) | 56-60 |
Number of pages | 5 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 404 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 1 May 2004 |
Externally published | Yes |
Event | Proceedings of the third European Conference on Vortex Matter - Crete, Greece Duration: 20 Sept 2003 → 28 Sept 2003 |
Keywords
- Antidot
- Mesoscopic superconductor
- Vortex