• DocumentCode
    29382
  • Title

    The Structural Evolution of (\\hbox {Gd}, \\hbox {Y}) \\hbox {Ba}_{2}\\hbox {Cu}_{3}\\hbox {O}_{\\rm x} Tapes With Zr Addition Made by Metal Organic Chemical Vapor Depositio

  • Author

    Changhui Lei ; Galstyan, Eduard ; Yimin Chen ; Tuo Shi ; Yuhao Liu ; Khatri, Narayan ; Jingfu Liu ; Xuming Xiong ; Majkic, Goran ; Selvamanickam, Venkat

  • Author_Institution
    SuperPower Inc., Schenectady, NY, USA
  • Volume
    23
  • Issue
    3
  • fYear
    2013
  • fDate
    Jun-13
  • Firstpage
    6602404
  • Lastpage
    6602404
  • Abstract
    Structural analysis of (Gd, Y)Ba2Cu3Ox tapes with Zr addition made by metal organic chemical vapor deposition has been conducted with transmission electron microscopy and X-ray diffraction. Zr content in the films was varied from 0 to 25% in the precursor. In all Zr-doped films, self-assembled nanocolumnar structures of BaZrO3 (BZO) were observed along the c-axis. The amount of BaZrO3 was found to increase steadily with Zr content. Additionally, planar BZO plates were found on the (001) plane of (Gd, Y)Ba2 Cu3Ox film. The size and thickness of BZO plates were seen to increase with Zr doping level. Rare-earth copper oxide phases were observed to begin to emerge in the 20 % Zr-doped film. Cross-sectional study of the interface between (Gd, Y)Ba2Cu3Ox and LaMnO3 cap layer revealed a thin discrete BZO layer on the LaMnO3 in the 20 % Zr doped film.
  • Keywords
    MOCVD; X-ray diffraction; barium compounds; doping profiles; gadolinium compounds; high-temperature superconductors; nanofabrication; nanostructured materials; self-assembly; superconducting tapes; superconducting thin films; transmission electron microscopy; yttrium compounds; zirconium; (GdY)Ba2Cu3Ox:Zr-LaMnO3; BZO plates; X-ray diffraction; doping level; metalorganic chemical vapor deposition; nanocolumnar structures; rare-earth copper oxide phases; self-assembly; structural analysis; superconducting films; superconducting tapes; transmission electron microscopy; zirconium addition; Critical current; Diffraction; Doping; Films; MOCVD; Microstructure; Zirconium; 2G high-temperature superconductor (HTS); Metal organic chemical vapor deposition (MOCVD); microstructure; pinning effect; transmission electron microscopy (TEM);
  • fLanguage
    English
  • Journal_Title
    Applied Superconductivity, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1051-8223
  • Type

    jour

  • DOI
    10.1109/TASC.2013.2243193
  • Filename
    6420905
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=29382