Texture of High Temperature Superconductor Thick Films Tl-1223 and Tl-2223/LaAlO3 Deposited by Spray Pyrolysis

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Abstract:

Superconducting Tl-1223 and Tl-2223 films have been prepared in a two steps process : deposition of Ba:Ca:Cu = 2:2:3 precursor by spray pyrolysis and ex-situ thallination. Pure textured Tl-1223 films with good superconducting properties (Tc = 113K and Jc = 0.7 MA/cm2 at 77K, 0T) have been obtained. Almost pure Tl-2223 films have been obtained when precursor films have been thallinated with fluorinated sources.

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Materials Science Forum (Volumes 467-470)

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591-596

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October 2004

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© 2004 Trans Tech Publications Ltd. All Rights Reserved

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