RE (RE = Sm, Eu, Gd)‐doped CeO2 single buffer layers for coated conductors prepared by chemical solution deposition

Textured RE (RE = Sm, Eu, Gd)‐doped CeO2 single buffer layers for coated conductors were prepared by a polymer assisted chemical solution deposition (PACSD) approach. The as‐grown buffer layers on biaxially textured NiW(5%) alloy tapes were characterized by X‐ray diffraction (XRD) and scanning electron microscopy (SEM) as well as atomic force microscopy (AFM). The thicknesses of these buffer layers have been determined to be over 150 nm, on which a YBCO film has been deposited with an onset transition temperature above 90 K and a critical current density of 1 MA cm–2. These results indicate that RE doping can increase the critical thickness of CeO2 and PACSD may be a cost‐effective way to deposit CeO2. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

[1]  Q. Jia,et al.  Polymer-assisted deposition of metal-oxide films , 2004, 2008 17th IEEE International Symposium on the Applications of Ferroelectrics.

[2]  D. Shi,et al.  Ce2Y2O7 and Ce0.8Zr0.2O2 buffer layers deposited by E-beam evaporation , 2007 .

[3]  U. Schoop,et al.  The Development of Second Generation HTS Wire at American Superconductor , 2007, IEEE Transactions on Applied Superconductivity.

[4]  Y. Shiohara,et al.  Present Status & Future Prospects of Coated Conductor Development in Japan , 2007, IEEE Transactions on Applied Superconductivity.

[5]  M. Baldini,et al.  Progress on Single Buffer Layered Coated Conductors Prepared by Thermal Evaporation , 2007, IEEE Transactions on Applied Superconductivity.

[6]  K. Tekletsadik,et al.  Recent Progress in Second-Generation HTS Conductor Scale-Up at SuperPower , 2007, IEEE Transactions on Applied Superconductivity.

[7]  L. Schultz,et al.  Enhanced flux pinning in YBa2Cu3O7 layers by the formation of nanosized BaHfO3 precipitates using the chemical deposition method , 2007 .

[8]  T. Mccleskey,et al.  Manipulating Magnetoresistance Near Room Temperature in La0.67Sr0.33MnO3/La0.67Ca0.33MnO3 Films Prepared by Polymer Assisted Deposition , 2006 .

[9]  Y. Qiu,et al.  A novel process for CeO2 single buffer layer on biaxially textured metal substrates in YBCO coated conductors , 2006 .

[10]  A. Ignatiev,et al.  A single oxide buffer layer on a cube-textured Ni substrate for the development of YBCO coated conductors by photo-assisted MOCVD , 2006 .

[11]  K. Salama,et al.  Solution-derived textured oxide thin films—a review , 2006 .

[12]  L. Schultz,et al.  An all chemical solution deposition approach for the growth of highly textured CeO2 cap layers on La2Zr2O7-buffered long lengths of biaxially textured Ni–W substrates for YBCO-coated conductors , 2005 .

[13]  Q. Jia,et al.  Structural and dielectric properties of epitaxial Ba1−xSrxTiO3 films grown on LaAlO3 substrates by polymer-assisted deposition , 2004 .

[14]  Dominic F. Lee,et al.  MOD approach for the growth of epitaxial CeO2 buffer layers on biaxially textured Ni–W substrates for YBCO coated conductors , 2003 .

[15]  K. Salama,et al.  Strontium titanate buffer layers deposited on rolled Ni substrates with metal organic deposition , 2003 .

[16]  H. Okuyucu,et al.  Development of 100% lattice match buffer layers on RABiTS Ni tapes by sol-gel , 2003 .

[17]  W. Sigmund,et al.  Textured growth of multi-layered buffer layers on Ni tape by sol-gel process , 2003 .

[18]  W. Sigmund,et al.  Sol-gel Tb/sub 2/O/sub 3/ buffer layers on Ni tapes for YBCO coated conductors , 2003 .

[19]  S. Sathyamurthy,et al.  Lanthanum zirconate: A single buffer layer processed by solution deposition for coated conductor fabrication , 2002 .

[20]  K. Salama,et al.  Processing aspects of MOD strontium titanate buffer layers for coated conductor applications , 2002 .

[21]  H. Kozuka,et al.  Crack-Free, Thick Ceramic Coating Films via Non-Repetitive Dip-Coating Using Polyvinylpyrrolidone as Stress-Relaxing Agent , 2000 .

[22]  Dominic F. Lee,et al.  Growth of biaxially textured buffer layers on rolled-Ni substrates by electron beam evaporation , 1997 .

[23]  Julia M. Phillips,et al.  Substrate selection for high‐temperature superconducting thin films , 1996 .

[24]  Kenneth A. Jackson,et al.  Anisotropic critical currents in Ba2YCu3O7 analyzed using an extended Bean model , 1989 .

[25]  Greene,et al.  Structural and physical properties of the metal (M) substituted YBa2Cu3-xMxO7-y perovskite. , 1988, Physical review. B, Condensed matter.

[26]  G. Brauer,et al.  Über heterotype Mischphasen bei Seltenerdoxyden. I , 1954 .