Abstract

Superconductor-normal metal-superconductor (SNS) high- T c Josephson junctions have been fabricated on c-oriented YBa 2Cu 3O 7−δ (YBCO) films. Focused ion beam (FIB) nano-structure modification (cutting of the film and local deposition of a metal) was used to form the junction with tungsten barrier. The junctions exhibit resistively shunted junction (RSJ)-like I–V characteristics.

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