Abstract
We have studied the structure of YBa2Cu3O7−y (YBCO) high-T c superconductor films obtained by deposition for various times under otherwise identical conditions. Thin YBCO films prepared by the nonaxial laser shadow deposition technique are epitaxial and have microstrains below 1×10−3. The main factor determining variations of the unit cell parameter c in the films is the difference of the crystal block size 〈D〉 in the direction normal to the film surface, which reflects the nanodimensional effects known in oxides.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 30, No. 4, 2004, pp. 15–19.
Original Russian Text Copyright © 2004 by Korol’kov, Ka\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \)dashev, Abdulvakhidov, Kupriyanov.
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Korol’kov, D.S., Kaidashev, E.M., Abdulvakhidov, K.G. et al. Nanodimensional effects in the structure of epitaxial YBa2Cu3O7−y films. Tech. Phys. Lett. 30, 135–137 (2004). https://doi.org/10.1134/1.1666963
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DOI: https://doi.org/10.1134/1.1666963