Abstract
We report on the structural and electrical properties of a-axis oriented PrBa2Cu3O7-δ film deposited on (001) YBa2Cu3O7-δ single crystal. a-Axis oriented PrBa2Cu3O7-δ film, expected to be a barrier layer, was prepared using a dc-95 MHz hybrid plasma sputtered on YBa2Cu3O7-δ single crystals that are superconducting ground planes. The atomic force microscopy image showed that the surface of PrBa2Cu3O7-δ film on (001) YBa2Cu3O7-δ single crystal was smooth with a mean roughness of 2.9 nm. The resistivity of a-axis PrBa2Cu3O7-δ film on (001) YBa2Cu3O7-δ single crystal measured after patterning into the mesa structure was small in comparison with that of a-axis PrBa2Cu3O7-δ film on (100)SrTiO3 substrate and decreased with decreasing temperature.
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