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Increased critical current density and pinning in thick Ag/YBa2Cu3O7−x multilayers

✍ Scribed by V.S. Dang; P. Mikheenko; A. Sarkar; M.M. Awang Kechik; J.S. Abell; A. Crisan

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
659 KB
Volume
470
Category
Article
ISSN
0921-4534

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✦ Synopsis

We have investigated the superconducting properties of Ag/YBa 2 Cu 3 O 7Àx thick multilayers grown by Pulsed Laser Deposition, and found that the artificial pinning centres induced by Ag nanodots lead to a significant increase in critical current, especially in high applied magnetic fields. Transmission Electron Microscopy showed a columnar growth of YBa 2 Cu 3 O 7Àx induced by Ag nanodots, while angle-dependent transport measurements revealed the existence of strong, both isotropic and c-axis correlated, artificial pinning centres.

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