Abstract
Fine-grain thin superconducting films can be prepared by metalorganic Chemical Aerosol Deposition Technology (CADT). In this paper, we present the preparation and properties of YBa 2Cu 3O 7-x films on the different substrates, Si and SrTiO 3 (100). It is shown that the zero-resistance temperature (T c,0) of the films on SrTiO 3 substrates is about 90 K, and the critical current density (J c) at 77 K is above 10 4 A/cm 2. In addition, these films exhibit significant grain-boundary weak link behaviour, which is very promising for applications in electronic devices.
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