Dresden 2006 – scientific programme

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TT: Tiefe Temperaturen

TT 2: Superconductivity: Conductor Development

TT 2.6: Talk

Monday, March 27, 2006, 12:45–13:00, HSZ 02

Reel to Reel MOCVD of YBCO and buffer layers on textured metal tapes — •Oliver Stadel¹, Sergej Samoilenkov¹, Jürgen Schmidt¹, Ruslan Muydinov¹, Hartmut Keune¹, Georg Wahl¹, Oleg Gorbenko², Oleg Melnikov², Igor Korsakov², and Andrey Kaul² — ¹Institute of Surface Technology (IOT), Technical University Braunschweig, Bienroder Weg 53, 38108 Braunschweig, Germany — ²Department of Chemistry, Moscow State University V 234, Moscow 119 899, Russia

We report the deposition of YBCO and oxide buffer layers on textured Ni tapes. We developed a new MOCVD technique for the deposition of epitaxial oxides on textured metal tapes. The oxygen partial pressure is controlled, so no NiO formation can take place, while the oxide buffer layer is stable. This enable us to coat the textured metal tape with conductive and isolating oxides. A RTR MOCVD-system was used to coat textured metal tapes with oxide buffer layers and YBCO layers. These YBCO films were in plane and out of plane textured with FWHM 5-6^∘ and 1,5-3^∘ respectively. Additional textured Ni-tapes, which were buffered and delivered from partners of the German Virtual Institute, were coated with YBCO (jc > 1 MA/cm2 at 77 K).

Acknowledgement The authors thank the partners of the Virtual Institute No-dqChemically deposited YBCO SuperconductorsNo-dq. We acknowledge the financial support by the Ministry of Science and Culture of Lower Saxony and the European Community in frame of the ESF/EFRE project SuperConTech and the Helmholtz Gemeinschaft e.V..