Abstract
Many superconductor applications rely on the ability to pin vortex lattices. This ability depends on structural defects to pin individual vortices, but vortex-vortex interactions often play an important role in pinning the other vortices. Experimental progress on this complex problem can be made by introducing random arrays of well-defined pinning centers and studying the flux dynamics for a range of vortex densities (i. e. , fields). The results of such studies in epitaxial Tl2Ba2CaCu2Oy films containing ion tracks show the importance of vortex-vortex interactions. As an example, the effective pinning field of the defects rises to many times the ion-dose field for temperatures well below TC.
Original language | English (US) |
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Pages (from-to) | 1987-1992 |
Number of pages | 6 |
Journal | IEEE Transactions on Applied Superconductivity |
Volume | 7 |
Issue number | 2 PART 2 |
DOIs | |
State | Published - 1997 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering