Preparation and properties of a capacitor structure formed by doubled-sided YBa2Cu3O7-xfilms on SrTiO3substrate
Autor: | D G Rauser, A.G. Zaitsev, Orest Vendik, P. K. Petrov, E. K. Hollmann |
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Rok vydání: | 1995 |
Předmět: |
Materials science
Acoustics and Ultrasonics Mineralogy Substrate (electronics) Sputter deposition Condensed Matter Physics Capacitance Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Capacitor Hysteresis law Dielectric loss Composite material Thin film Ceramic capacitor |
Zdroj: | Journal of Physics D: Applied Physics. 28:1457-1460 |
ISSN: | 1361-6463 0022-3727 |
Popis: | The preparation of high-temperature superconducting YBa2Cu3O7-x thin films on both sides of the SrTiO3 substrate by DC magnetron sputtering is reported. The films on both sides of the substrate exhibited well-oriented crystalline structure with the c axis normal to the substrate surface, Tc=80-91 K and Rs less than 0.05 Omega at 77 K and 60 GHz. The properties of the resultant SrTiO3 capacitor with YBCO electrodes were examined at frequency of 1 GHz. The following parameters were obtained: relative dielectric permittivity of 4*103 at 77 K and dielectric loss tangents of 3*10-4 at 77 K. No hysteresis in the dependence of the capacitance on the DC bias voltage was observed. |
Databáze: | OpenAIRE |
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