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Reduced microwave losses of YBa2Cu3O7_thin films on electro-optic LiNbO3 crystals
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We report on the growth of epitaxial YBa2Cu3O7 thin films on X-cut LiNbO3 single crystals. The use of double CeO2/YSZ buffer layers allows a single in-plane orientation of YBa2Cu3O7, and results in superior superconducting properties. In particular, surface resistance Rs values of 1.4 m¿ have been measured at 8 GHz and 65 K. The attainment of such low values of Rs constitutes a key step toward the incorporation of high Tc materials as electrodes in photonic and acoustic devices.
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FÀBREGA, L., et al. Reduced microwave losses of YBa2Cu3O7_thin films on electro-optic LiNbO3 crystals. Journal of Applied Physics. 2002. Vol. 92, num. 10, pags. 6346. ISSN 0021-8979. [consulted: 6 of October of 2026]. Available at: https://hdl.handle.net/2445/24801