TY - JOUR
T1 - Epitaxial growth of REBa2Cu3O7-y films on various substrates by chemical solution deposition
AU - Yamagiwa, K.
AU - Araki, T.
AU - Takahashi, Y.
AU - Hiei, H.
AU - Kim, S. B.
AU - Matsumoto, K.
AU - Shibata, J.
AU - Hirayama, T.
AU - Ikuta, H.
AU - Mizutani, U.
AU - Hirabayashi, I.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications under the New Sunshine Program administered by the Agency of Industrial Science and Technology (AIST) of the Ministry of International Trade and Industry (MITI) of Japan.
PY - 2001/7/2
Y1 - 2001/7/2
N2 - We have investigated the processing conditions for solid phase epitaxial growth of REBa2Cu3O7-y (RE = rare earth and Y; RE123) by chemical solution deposition (CSD) using metalorganic precursors. We selected two kinds of starting materials, metal naphthenates and metal trifluoroacetates, for RE123 films. The films are crystallized through barium carbonate and fluoride, respectively. Superconducting properties of RE123 films were strongly dependent on microstructure of the calcined film. In the case of the metal naphthenates route, the calcined films had to be amorphous in order to realize solid phase epitaxial growth. However, Jc of the epitaxially grown film was low. On the other hand, using the metal trifluoroacetates, RE123 films were grown epitaxially even if the calcined films were crystallized in metal oxyfluoride. To prepare thicker RE123 films, single step coating controlling concentration and/or viscosity of coating solution is necessary because F-contained reactive gas was formed during heat-treatment. Using chemically stable CeO2-buffered YSZ as substrates, we have succeeded in preparing the YBCO films, having high Jc of 3.6 MA/cm2 and 4700 Å in thickness.
AB - We have investigated the processing conditions for solid phase epitaxial growth of REBa2Cu3O7-y (RE = rare earth and Y; RE123) by chemical solution deposition (CSD) using metalorganic precursors. We selected two kinds of starting materials, metal naphthenates and metal trifluoroacetates, for RE123 films. The films are crystallized through barium carbonate and fluoride, respectively. Superconducting properties of RE123 films were strongly dependent on microstructure of the calcined film. In the case of the metal naphthenates route, the calcined films had to be amorphous in order to realize solid phase epitaxial growth. However, Jc of the epitaxially grown film was low. On the other hand, using the metal trifluoroacetates, RE123 films were grown epitaxially even if the calcined films were crystallized in metal oxyfluoride. To prepare thicker RE123 films, single step coating controlling concentration and/or viscosity of coating solution is necessary because F-contained reactive gas was formed during heat-treatment. Using chemically stable CeO2-buffered YSZ as substrates, we have succeeded in preparing the YBCO films, having high Jc of 3.6 MA/cm2 and 4700 Å in thickness.
KW - A2. Growth from solutions
KW - A3. Solid phase epitaxy
KW - B1. Cuprates
KW - B2. Superconducting materials
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U2 - 10.1016/S0022-0248(01)01180-0
DO - 10.1016/S0022-0248(01)01180-0
M3 - Article
AN - SCOPUS:0035398245
SN - 0022-0248
VL - 229
SP - 353
EP - 357
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 1
ER -