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DPG

Dresden 2011 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 10: Poster Session: Superconductivity

TT 10.1: Poster

Montag, 14. März 2011, 14:00–18:00, P4

Growth of YBCO thin films and their interaction with gold nano clusters — •Christian Katzer1, Ralf Erlebach1, Daniel Kuhwald1, Peter Michalowski1, Frank Schmidl1, Ingo Uschmann2, and Paul Seidel11Friedrich-Schiller-University Jena, Institute of Solid State Physics, Helmholtzweg 5, 07743 Jena, Germany — 2Friedrich-Schiller-University Jena, Institute of Optics and Quantum Electronics, Max-Wien-Platz 1, 07743 Jena, Germany

Using Pulsed Laser Deposition (PLD) our team is able to fabricate and examine Yttrium-Barium-Copper-Oxide (YBCO) thin films of high quality. A particular point of investigation is the influence of an in situ pre-deposited gold film. While growing the superconducting film one can achieve a formation of gold nano clusters in an YBCO matrix through heating of the initial gold layer. We studied the temperature dependence of the resistance in respect to the YBCO film thickness for various gold layers. Furthermore the critical current density at 77 K and their temperature dependence will be compared with the one of non-modified YBCO thin film structures.

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