Abstract
The advanced metal organic deposition using trifluoroacetates (TFA-MOD) is one of the most promising methods for producing superconducting coated conductors. In order to form highly grain aligned YBa2Cu3O7-δ (Y123) films with high JC, it is important to control the microstructures of the films. In the present work, Y123 films were grown by the advanced TFA-MOD method on CeO2 layered LaAlO3 (LAO) substrates. Quenched films were prepared by cooling rapidly during the crystallization stage, and their cross-sectional microstructures were investigated by transmission electron microscopy (TEM). The bright-field images (BFIs) showed existence of some grains, precipitates and their interfaces in the film. Selected area electron diffraction patterns (SAEDPs) were taken from various regions, and a-axis and/or c-axis-oriented structures, amorphous structures, etc. were observed. In addition, Y123 grains, BaF2, CuO and Y2Cu2O5 grains were clarified by the scanning transmission electron microscopy-energy dispersive X-ray spectroscopy (STEM-EDS) analyses.
| Original language | English |
|---|---|
| Pages (from-to) | 717-721 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 463-465 |
| Issue number | SUPPL. |
| DOIs | |
| Publication status | Published - Oct 1 2007 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Transmission electron microscopy studies of YBCO films fabricated by advanced TFA-MOD process. / Yamada, K.; Mori, N.; Tada, K.; Tanaka, T.; Teranishi, Ryo; Mukaida, Masashi; Toh, S.; Kaneko, Kenji; Izumi, T.; Shiohara, Y.
In: Physica C: Superconductivity and its Applications, Vol. 463-465, No. SUPPL., 01.10.2007, p. 717-721.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transmission electron microscopy studies of YBCO films fabricated by advanced TFA-MOD process
AU - Yamada, K.
AU - Mori, N.
AU - Tada, K.
AU - Tanaka, T.
AU - Teranishi, Ryo
AU - Mukaida, Masashi
AU - Toh, S.
AU - Kaneko, Kenji
AU - Izumi, T.
AU - Shiohara, Y.
PY - 2007/10/1
Y1 - 2007/10/1
N2 - The advanced metal organic deposition using trifluoroacetates (TFA-MOD) is one of the most promising methods for producing superconducting coated conductors. In order to form highly grain aligned YBa2Cu3O7-δ (Y123) films with high JC, it is important to control the microstructures of the films. In the present work, Y123 films were grown by the advanced TFA-MOD method on CeO2 layered LaAlO3 (LAO) substrates. Quenched films were prepared by cooling rapidly during the crystallization stage, and their cross-sectional microstructures were investigated by transmission electron microscopy (TEM). The bright-field images (BFIs) showed existence of some grains, precipitates and their interfaces in the film. Selected area electron diffraction patterns (SAEDPs) were taken from various regions, and a-axis and/or c-axis-oriented structures, amorphous structures, etc. were observed. In addition, Y123 grains, BaF2, CuO and Y2Cu2O5 grains were clarified by the scanning transmission electron microscopy-energy dispersive X-ray spectroscopy (STEM-EDS) analyses.
AB - The advanced metal organic deposition using trifluoroacetates (TFA-MOD) is one of the most promising methods for producing superconducting coated conductors. In order to form highly grain aligned YBa2Cu3O7-δ (Y123) films with high JC, it is important to control the microstructures of the films. In the present work, Y123 films were grown by the advanced TFA-MOD method on CeO2 layered LaAlO3 (LAO) substrates. Quenched films were prepared by cooling rapidly during the crystallization stage, and their cross-sectional microstructures were investigated by transmission electron microscopy (TEM). The bright-field images (BFIs) showed existence of some grains, precipitates and their interfaces in the film. Selected area electron diffraction patterns (SAEDPs) were taken from various regions, and a-axis and/or c-axis-oriented structures, amorphous structures, etc. were observed. In addition, Y123 grains, BaF2, CuO and Y2Cu2O5 grains were clarified by the scanning transmission electron microscopy-energy dispersive X-ray spectroscopy (STEM-EDS) analyses.
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UR - http://www.scopus.com/inward/citedby.url?scp=34548415490&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2007.04.289
DO - 10.1016/j.physc.2007.04.289
M3 - Article
VL - 463-465
SP - 717
EP - 721
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SUPPL.
ER -