Structure Formation in Yttrium-Barium Cuprate
Superconductor Films Obtained from Solutions of Methacrylates
on Lanthanum Aluminate Substrates

Yu. Ya. Tomashpol’skii, L. F. Rybakova, N. V. Sadovskaya, and S. Yu. Kholopova

Karpov Research Institute of Physical Chemistry, ul. Vorontsovo pole, Moscow, 105064 Russia

e-mail: tomash@cc.nifhi.ac.ru

Received January 31, 2008

Abstract—Nanoscale structuring of YBa₂Cu₃O₇ high-temperature superconductor films on a lanthanum alu-
minate LaAlO₃ substrate was studied after annealing at 200850C. For this purpose, a 0.5% aerosol of Y, Ba,
and Cu methacrylates was deposited on the substrate. A general scheme of the mechanism of complex oxide
film formation from chemical solutions is suggested. The formation of complex oxide film structures from solu-
tions was found to be a three-stage process irrespective of the deposition procedure. It included the liquid-phase,
pyrolytic, and high crystallization stages.

DOI: 10.1134/S0036024408100051

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