Properties of Pr-and BZO-doped YBCO Multilayers

Abstract Multilayers of2wt-% Pr-and4wt-% BaZrO3-doped YBa2Cu3O6+ x (YBCO) were deposited by pulsed laser ablation on SrTiO3 and MgO single crystals. The structural and superconducting properties of the multilayers are presented. Multilayering was found to improve the critical temperature and structural quality of the samples on SrTiO3, but it did not change the critical current density. On MgO, the critical temperature improved slightly,but the critical current density decreased.

[1]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[2]  P. Paturi,et al.  Magnetic relaxation and flux pinning in YBCO films prepared by PLD from a nanocrystalline target , 2005 .

[3]  P. Paturi,et al.  Optimal BZO Doping in YBCO Films Grown on Single Crystal STO and Buffered NiW Substrates , 2011, IEEE Transactions on Applied Superconductivity.

[4]  Harald W. Weber,et al.  On the calculation of Jc from magnetization measurements on superconductors , 1992 .

[5]  P. Paturi,et al.  Greatly decreased critical current density anisotropy in YBa2Cu3O6+x thin films ablated from nanocrystalline and BaZrO3-doped nanocrystalline targets , 2008 .

[6]  Q. X. Jia,et al.  Strongly enhanced current densities in superconducting coated conductors of YBa2Cu3O7–x + BaZrO3 , 2004, Nature materials.

[7]  P. Dowden,et al.  Synergetic combination of different types of defect to optimize pinning landscape using BaZrO(3)-doped YBa(2)Cu(3)O(7). , 2009, Nature materials.

[8]  Andrew G. Glen,et al.  APPL , 2001 .

[9]  H. Zandbergen,et al.  Formation of edge dislocations in thin epitaxial YBCO films , 1997, IEEE Transactions on Applied Superconductivity.

[10]  Y. Tse,et al.  Optimization of the BaZrO3 concentration in YBCO films prepared by pulsed laser deposition , 2006 .

[11]  R. Laiho,et al.  Influence of BaZrO3 dopant concentration on properties of YBa2Cu3O6+x films in magnetic fields up to 30 T , 2010 .

[12]  P. Paturi,et al.  Optimization of the ${\rm BaCeO}_{3}$ Concentration in YBCO Films Prepared by Pulsed Laser Deposition , 2011, IEEE Transactions on Applied Superconductivity.

[13]  Keikichi G. Nakamura,et al.  Quantitative structure analyses of YBa 2 Cu 3 O 7-δ thin films: Determination of oxygen content from x-ray-diffraction patterns , 1993 .

[14]  A. Gauzzi,et al.  Quantitative analysis of growth‐induced reduction of long range lattice order in ion‐beam sputtered YBa2Cu3O6.9 films , 1995 .