Paper Title:
Textured YBCO Films Derived from Low-Fluorine-Content Solution
  Abstract

with yttrium, barium, copper acetates as starting materials, a low-fluorine-content solution was prepared. YBa2Cu3O7-x (YBCO) films on LaAlO3 (LAO) single crystal substrates were fabricated by a new TFA-MOD method. Solution-derived YBCO films exhibited epitaxial growth, which was confirmed by X-ray diffraction (XRD). The humidity of the furnace atmosphere during annealing process influences the texture of YBCO film. Under high-humidity of furnace atmosphere, a-oriented grains, which were confirmed by scanning electron microscopy (SEM), were generated on film surface. High-resolution transmission electron microscopy (HRTEM), however, indicated that although a-axis oriented grains formed on the film surface, c-axis oriented grains occupied the area near the YBCO/LAO interface. High-performance YBCO films with Tc above 90K, and Jc more than 106A/cm2 at 77 K and zero magnetic field were obtained.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
2003-2006
DOI
10.4028/www.scientific.net/MSF.546-549.2003
Citation
Y. Q. Chen, G. Y. Zhao, L. Lei, D. C. Chen, "Textured YBCO Films Derived from Low-Fluorine-Content Solution", Materials Science Forum, Vols. 546-549, pp. 2003-2006, 2007
Online since
May 2007
Keywords
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Price
$32.00
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