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Low field vortex dynamics of BSCCO-2223 superconducting thin films

✍ Scribed by H. Martı́nez; A. Mariño; J.E. Rodrı́guez

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
254 KB
Volume
408-410
Category
Article
ISSN
0921-4534

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✦ Synopsis

Highly oriented BSCCO thin films were produced by r.f. magnetron sputtering on MgO(1 0 0) substrates. The magnetic properties of these single high T c -phase with different granularity were analyzed in the low magnetic field region 0 < H < 0:08 T. The T irr ðH Þ data for all the samples fitted well to a de Almeida-Thoules (AT)-like power law. On the other hand the irreversibility line (IL) was shifted to lower temperatures and both critical current density and activation energy decreased by reducing the grain sizes.

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