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Superconductor-ferroelectric-superconductor (SFS) structures were produced by magnetron sputtering of ceramic YBa2Cu307-s and BaxSrr-,Ti03 targets. Raman spectroscopy was effectively used for characterization of superconducting and ferroelectric films in layered structures. Electrical characteristics, such as the temperature dependence of resistance, currentvoltage and capacitance-voltage characteristics were measured. The possibility of applying SFS structures as cwoelectronic caDacitors with voltage control is demonstrated.

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