An insulating barrier separating two superconducting materials and producing the Josephson effect.
A low-power, high-speed electronic switching device consisting of a thin insulator between two superconducting metals: it operates at a temperature near absolute zero.
An ultra-fast switching technology that uses superconductor materials, originally conceived by Brian Josephson. Circuits are immersed in liquid helium to obtain near-absolute zero degrees required for operation. Switching takes place in a few picoseconds. Although Josephson junctions have not materialized for ordinary computer circuits, they have been used thus far in medical instruments and quantum computers. See quantum computing.
Origin of josephson-junction
From Brian David Josephson Welsh physicist