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

Conductive multilayers of YBa2Cu3O7−δ/SrRuO3/LaNiO3 (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...

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Veröffentlicht in:Applied physics letters 2000-02, Vol.76 (6), p.760-762
Hauptverfasser: Aytug, T., Wu, J. Z., Cantoni, C., Verebelyi, D. T., Specht, E. D., Paranthaman, M., Norton, D. P., Christen, D. K., Ericson, R. E., Thomas, C. L.
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Sprache:eng
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Zusammenfassung:Conductive multilayers of YBa2Cu3O7−δ/SrRuO3/LaNiO3 (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.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.125886