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As-deposited high Tc superconducting thin films on ITO-coated glass

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1 Author(s)
Fujino, K. ; Nippon Sheet Glass Co. Ltd., Hyogo, Japan

High-Tc superconducting (HTSC) thin films deposited on a glass substrate coated with an oxide buffer layer have been studied without subsequent postanneal. The structure (HTSC/ITO/glass) came to be composed entirely of oxide materials. The deposition of the superconducting films was carried out by either excimer laser ablation or sputtering below the substrate temperature of 750°C. The ITO buffer layer inhibits interdiffusion between YBaCuO and SiO2 and does not cause any cracks. The YBaCuO thin films were grown on ITO-coated glass oriented with the c-axis. The zero-resistivity transition temperature (Tc) reached 80 K. ITO is considered a unique candidate for the stabilizer because of its transparence and electrically conductive properties. The structure of the superconducting film on ITO should be useful in industrial fabrication of superconducting plates, coils, and optoelectronic devices

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Magnetics, IEEE Transactions on  (Volume:27 ,  Issue: 2 )