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Critical currents in oxygen-implanted YBa2Cu3O7−σ thin films under magnetic and electrostatic fields

✍ Scribed by Yu.V. Gomeniuk; V.Z. Lozovski; V.S. Lysenko; I.P. Tyagulski

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
475 KB
Volume
214
Category
Article
ISSN
0921-4534

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✦ Synopsis

The strong negative electrostatic field applied to the surface of a high-To superconducting YBa2Cu3OT_a thin film has been found to increase the transport critical current density (Jc) in the vicinity of T~. Ion implantation of oxygen increases Jc but, after implantation, a decrease of the critical current under the influence of an electric field has been observed. The effect of the electric field on Jc is explained by the modulation of superconducting properties of the polycrystalline film surface.

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