Physics – Condensed Matter – Superconductivity
Scientific paper
1997-05-02
J. Mater. Res. 13, 954 (1998)
Physics
Condensed Matter
Superconductivity
To be published in Journal of Materials Research, (4 pages, 4 jpeg figures)
Scientific paper
10.1557/JMR.1998.0133
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(2)Cu(3)O(7) and Y(2)O(3). We see a high degree of in-plane orientation and have verified a previous prediction for the in-plane order of Y(2)BaCuO(5) on (110) MgO. Transmission electron microscopy shows the composite films to be a mixture of two phases, with YBCO grain sizes of 1 micron. We have also compared our observations of the in-plane order to the predictions of a modified near coincidence site lattice model.
Broussard P. R.
Talvacchio J.
Wall Mark A.
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