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Electric properties of planar Ag/HgBa2CaCu2O6+delta interface
KTH, School of Information and Communication Technology (ICT). (Materialfysik)
1999 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 316, no 1-2, 83-88 p.Article in journal (Refereed) Published
Abstract [en]

Silver coatings were magnetron sputtered onto the surface of highly c-axis-oriented HgBa2CaCu2O6+delta superconducting thin films exhibiting zero resistance T-c at about 120 K and the critical current density similar to 10(5) A/cm(2) at 100 K. Electrical resistance of the Ag/HgBa2CaCu2O6+delta planar interface and current-voltage dependencies were investigated in a course of post-deposition annealing of the Ag/HgBa2CaCu2O6+delta at 50-350 degrees C in both purl oxygen and oxygen-free ambient. Results of the electrical measurements are explained in terms of the insulating layer formation at the Ag/HgBa2CaCu2O6+delta interface. It is assumed this insulator is a product created by oxygen non-stoichiometry and decomposition of the superconductor at the interface between both materials. (C) 1999 Elsevier Science B.V. All rights reserved.

Place, publisher, year, edition, pages
1999. Vol. 316, no 1-2, 83-88 p.
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-84798DOI: 10.1016/S0921-4534(99)00253-1ISI: 000080633400011OAI: diva2:499634
NR 20140805Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-02-13Bibliographically approved

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