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TT: Tiefe Temperaturen

TT 27: HTSL Bandleiter

TT 27.4: Vortrag

Freitag, 30. März 2001, 11:00–11:15, H

Epitaxial growth of pure and Ag-doped YBa₂Cu₃O_7−x on biaxially textured metal substrates — •Laura Fernander G.-R., Bernhard Holzapfel, and Ludwig Schultz — Helmholtzstr.20, 01069 Dresden

Epitaxial pure and Ag-doped YBa₂Cu₃O_7−x films have been grown onto biaxially assisted textured Ni substrates (RABiTS) by laser ablation of pure YBa₂Cu₃O_7−x and YBa₂Cu₃O_7−x-Ag targets with 2 wt% and 10wt% of Ag. The growth of pure and doped YBa₂Cu₃O_7−x films was studied and optimised, comparing microstructural and transport properties in both cases. The configuration of the samples was YBCO/YSZ/CeO₂/Ni. CeO₂ and the YSZ films were grown epitaxially onto the Ni tape using also laser ablation. The combination of both materials produced a good buffer layer system for the growth of YBa₂Cu₃O_7−x, avoiding damaging of the YBa₂Cu₃O_7−x film with the Ni tape.