Alternative buffer architectures for high critical current density YBCO superconducting deposits on rolling assisted biaxially-textured substrates

Dominic F. Lee, Mariappan Paranthaman, John E. Mathis, Amit Goyal, Donald M. Kroeger, Eliot D. Specht, Robert K. Williams, Frederick A. List, Patrick M. Martin, Chan Park, David P. Norton, David K. Christen

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Although high critical current density (Jc) YBCO can be deposited on rolling assisted biaxially-textured substrates (RA-BITS) with the YSZ/CeO2/Ni architecture, improvement in uniformity is needed due to the presence of two-component YBCO epitaxy and cracking in the CeO2 buffer. We have determined that Yb2O3 is an excellent buffer material that provides a single-component YBCO epitaxy. In addition, crack-free epitaxial Y2O3 can be consistently deposited onto textured Ni substrates. High quality YBCO films have been deposited, and Jc as high as 1.8×106 A/cm2 at 77 K has been obtained on this Yb2O3/Y2O3/Ni alternative RABiTS architecture.

Original languageEnglish
Pages (from-to)L178-L180
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume38
Issue number2 B
DOIs
StatePublished - 1999

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