| Autor: |
Gray, K.E., Steel, D.G., Hettinger, J.D., Miller, D.J., Washburn, B.R., Ware, M., Parkman, J.T., Yoder, M.E., Moreau, C., Eddy, M.M. |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Applied Superconductivity; 1997, Vol. 7 Issue 2, p1987-1992, 6p |
| Abstrakt: |
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 Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub y/ 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 T/sub c/. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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