Slope Structure High Temperature Superconducting Josephson Joint Structure Using Gallium-doped YBCO Bulkhead and Manufacturing Method Thereof

摘要

The present invention relates to a ramp-edge Josephson junction structure using a Ga-doped YBCO (YBa ₂ Cu ₃ O _y ) barrier (GaB) barrier and a method of manufacturing the same. The sloped structure high temperature superconducting Josephson junction structure using gallium doped YBCO partition wall according to the present invention uses YBCO doped with gallium stabilized at 760 ° C. or higher as a partition material, so that the partition is thermally stabilized to maintain a clean interface even at the processing temperature of YBCO. The thermal expansion coefficient and crystal structure are also consistent with YBCO, so there is no mismatch, and the junction resistance has a high value of Vc in the metal-insulator transition range, and the junction thickness changes with the barrier thickness. Due to its insensitive properties, it is very easy to manufacture.