Y-Ba-Cu-O superconducting thin films prepared by plasma-assisted flash evaporation

Yasuda, Yukio; Koide, Yasuo; Zaima, Shigeaki; Sano, Naoki
July 1989
Applied Physics Letters;7/17/1989, Vol. 55 Issue 3, p307
Academic Journal
Superconducting thin films of Y-Ba-Cu-O oxide have been prepared on (100) MgO substrates by flash evaporation in oxygen plasma. The as-grown films deposited at substrate temperatures from 385 to 550 °C show superconducting properties with a critical temperature T[sub c] of about 90 K. Transmission electron diffraction indicates that a film deposited at below 430 °C has both amorphous and polycrystalline regions, and that a film at above 430 °C is polycrystalline.


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