Thermal expansion coefficients of high-T c superconductor substrate NdGaO3 single crystal
- 1 October 1990
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 68 (7) , 3643-3644
- https://doi.org/10.1063/1.346327
Abstract
We report the temperature dependence of lattice constants for a NdGaO3 single crystal grown by the Czochralski method and thermal expansion coefficients which were obtained for the first time. Lattice mismatch between the NdGaO3 substrate and YBa2Cu3Ox superconducting film is 0.27% at elevated temperatures and the appropriate expansivities are similar. The crystalline quality of deposited YBa2Cu3Ox films on NdGaO3 by the laser ablation method was extremely good. NdGaO3 is, therefore, an excellent candidate for epitaxial high‐Tc superconducting films.This publication has 12 references indexed in Scilit:
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