Journal of Inorganic Materials ›› 2012, Vol. 27 ›› Issue (11): 1191-1196.DOI: 10.3724/SP.J.1077.2012.12028

• Research Paper • Previous Articles     Next Articles

Fabricating RE2Zr2O7 Buffer Layers by Low Cost Electrodeposition

CAI Zeng-Hui, LIU Zhi-Yong, LU Yu-Ming, CAI Chuan-Bing   

  1. (Research Center for Superconductors and Applied Technologies, Shanghai University, Shanghai 200444, China)
  • Received:2012-01-11 Revised:2012-02-22 Published:2012-11-20 Online:2012-10-25
  • About author:CAI Zeng-Hui. E-mail: caizenghui@yeah.net
  • Supported by:

    Foundation of Ministry of Science and Technology of China (2011CBA00105, 2009AA03Z204); Foundation of Science and Technology Commission of Shanghai Municipality (11dz1100300, 10dz1203500)

Abstract: Electrodeposition (ED), a novel and low cost method for epitaxial growth of La2Zr2O7 (LZO) and Gd2Zr2O7 (GZO) buffer layers on the biaxially textured Ni-5at%W (Ni-5W) substrate, was successfully developed to reduce the production cost of the second generation high temperature coated conductors. Combined with magnetron sputtering (MS) method, the architecture of MS-CeO2/ED-RE2Zr2O7 was obtained to replace the multilayers deposited only by MS system. Using electrodeposition, the full-width at half maximum (FWHM) values of phi (Ф) scans (in-plane texture) and omega (ω) scans (out-of plane texture) are 7.2° and 6.8°, respectively, for a typical LZO layer with 60 nm thickness. The corresponding values are 6.7° and 5.8° for 60 nm-thick GZO layers fabricated by the same method. YBa2Cu3O7-δ (YBCO) films with superconducting transitions are subsequently obtained on ED-LZO/Ni-5W, ED-GZO/Ni-5W and MS-CeO2/ED-LZO/Ni-5W structures by using pulsed-laser deposition (PLD) system.

Key words: YBCO, buffer layer, electrodeposition, biaxial texture

CLC Number: