Structural characterization of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}/Y{sub 2}O{sub 3} composite films

Journal Article · Wed Apr 01 00:00:00 EST 1998 · Journal of Materials Research

DOI:https://doi.org/10.1557/JMR.1998.0133· OSTI ID:627898

Broussard, P R ^[1]; Wall, M A ^[2]; Talvacchio, J ^[3]

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1. Naval Research Laboratory, Washington, DC20375 (United States)
2. Lawrence Livermore National Laboratory, Livermore, California94550 (United States)
3. Northrop Grumman Science and Technology Center, Pittsburgh, Pennsylvania15235 (United States)

Using 4-circle x-ray diffraction and transmission electron microscopy, we have studied the microstructure and in-plane orientation of the phases present in thin film composite mixtures of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} and Y{sub 2}O{sub 3}. We see a high degree of in-plane orientation and have verified a previous prediction for the in-plane order of Y{sub 2}BaCuO{sub 5} on (110) MgO. Transmission electron microscopy shows the composite films to be a mixture of two phases, with YBCO grain sizes of {approx}1{mu}m. We have also compared our observations of the in-plane order to the predictions of a modified near coincidence site lattice model. {copyright} {ital 1998 Materials Research Society.}

• OSTI ID: 627898
• Journal Information: Journal of Materials Research, Vol. 13, Issue 4; Other Information: PBD: Apr 1998
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SUPERCONDUCTING COMPOSITES
SUPERCONDUCTING FILMS
THIN FILMS
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
MICROSTRUCTURE
TEXTURE
PHASE STUDIES
SPUTTERING