Growth and superconducting properties of YBa2Cu3O7-δ films on conductive SrRuO3 and LaNiO3 multilayers for coated conductor applications

T. Aytug, J. Z. Wu, C. Cantoni, D. T. Verebelyi, E. D. Specht, M. Paranthaman, D. P. Norton, D. K. Christen, R. E. Ericson, C. L. Thomas

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28 Scopus citations

Abstract

Conductive multilayers of YBa2Cu3O7-δ/SrRuO3/LaNiO 3 (YBCO/SRO/LNO), YBCO/SRO, and YBCO/LNO were grown epitaxially on single-crystal LaAlO3 and SrTiO3 substrates. Property characterizations revealed that the YBCO films on SRO and SRO/LNO buffer structures have excellent structural and superconducting properties. The YBCO/LNO, however, suffers degradation in superconducting transition temperatures and critical current densities, despite a good crystalline structure. The SRO/LNO bilayer showed excellent electrical contact with YBCO. These results have demonstrated the structural and chemical compatibility of SRO/LNO multilayers with YBCO and their potential use as conductive buffer layers for YBCO-based coated conductors as well as for other high-temperature superconducting applications.

Original languageEnglish
Pages (from-to)760-762
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number6
DOIs
StatePublished - Feb 7 2000

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