Wong-Ng, W.
, Levin, I.
, Ritter, J.
, Cook, L.
, Liu, G.
, Otani, M.
, Lucas, C.
, Diwanji, S.
, Feenstra, R.
, Goyal, P.
and Vaudin, M.
(2017),
Phase Relations in Ba-(Nd,Eu,Gd)-Cu-O Coated Conductor Films, Applied Physics Letters
(Accessed April 26, 2024)
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Phase Relations in Ba-(Nd,Eu,Gd)-Cu-O Coated Conductor Films
Published
Author(s)
, , , , , , Christopher E. Lucas, Shailee P. Diwanji, Ron Feenstra, P Goyal,
Abstract
Knowledge of phase relations in thin films of Ba2RCu3O6+x (where R=lanthanides or mixed lanthanides) is needed to guide the processing of coated conductors. High-temperature X-ray diffraction studies of Ba2RCu3O6+x films deposited using the trifluoroacetate solution on SrTiO3 demonstrate that while BaNd2CuO5 ( brown-phase structure) develops at 735 C and 100 Pa pO2, neither BaGd2CuO5 nor Ba(Nd1/3Eu1/3Gd1/3)2CuO5 ( green-phase structure) form at these conditions. As a result, Ba2(Nd1/3Eu1/3Gd1/3)Cu3O6+x in thin films is in equilibrium with the brown-phase , and a tie-line is found between the Ba2GdCu3O6+x and Gd2O3 in the BaO-poor region of the Ba-Gd-Cu-O diagram, in contrast to the bulk phase diagram.Citation
Applied Physics Letters
Pub Type
Journals
Keywords
Ba2RCu3O6+x (R=lanthanides), coated conductor, phase relations in films
Citation
Created February 19, 2017