• DocumentCode
    49611
  • Title

    \\hbox {BaHfO}_{3} -Doped Thick \\hbox {YBa}_{2}\\hbox {Cu}_{3}\\hbox {O}_{7-\\delta } Films on Highly Al

  • Author

    Sieger, Max ; Hanisch, Jens ; Pahlke, Patrick ; Sparing, Maria ; Gaitzsch, Uwe ; Iida, Kazumasa ; Nast, Rainer ; Reich, Elke ; Schultz, Ludwig ; Holzapfel, Bernhard ; Huhne, Ruben

  • Author_Institution
    Leibniz Inst. for Solid State & Mater. Res. (IFW), Dresden, Germany
  • Volume
    25
  • Issue
    3
  • fYear
    2015
  • fDate
    Jun-15
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    YBa2Cu3O7-δ (YBCO) films with a thickness of up to 2 μm containing nano-sized BaHfO3 (BHO) have been grown on biaxially textured metal tapes by pulsed laser deposition. Transmission electron microscopy revealed the inclusion of Y2O3 platelets and rod-like BHO structures. A c-axis oriented growth of the YBCO layer and biaxial oriented incorporation of BHO is confirmed by X-Ray diffraction. BHO expands the c-axis of YBCO, flattens the surface of YBCO and densifies the films. Y2O3 inclusions get smaller and finer distributed, possibly with a positive influence on pinning effects. A superconducting transition temperature Tc of about 89 K was determined, decreasing slightly with increasing BHO content. Transport current measurements in the maximum Lorentz force configuration showed an increased irreversibility field Hirr and higher pinning force density Fp with increasing BHO content in high magnetic fields.
  • Keywords
    X-ray diffraction; barium compounds; densification; electrical conductivity; flux pinning; high-temperature superconductors; nickel alloys; pulsed laser deposition; superconducting tapes; superconducting thin films; superconducting transition temperature; transmission electron microscopy; tungsten alloys; yttrium compounds; Lorentz force configuration; NiW; X-ray diffraction; YBCO:BaHfO3; biaxially textured metal tapes; c-axis oriented growth; densification; highly alloyed textured tapes; inclusions; irreversibility field; magnetic field; pinning force density; platelet structures; pulsed laser deposition; rod-like structures; superconducting transition temperature; thick YBCO films; transmission electron microscopy; transport current measurements; Art; Films; Lattices; Magnetic fields; Substrates; Superconducting films; Yttrium barium copper oxide; BHO; RABiTS; YBCO; pinning; pulsed laser deposition;
  • fLanguage
    English
  • Journal_Title
    Applied Superconductivity, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1051-8223
  • Type

    jour

  • DOI
    10.1109/TASC.2014.2372903
  • Filename
    6963345
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=49611