Pentalayer SNS Josephson Junction

Nathan Newman (Inventor)

Research output: Patent

Abstract

Most existing applications of superconductor electronics currently use niobium for the interconnections and resistively shunted Josephson tunnel junctions as the active devices. Niobium is preferred over other materials for interconnections because of its chemical and physical stability and because a key parameter has an advantageous value compared with the so-called "high-temperature superconductors".Researchers at ASU and at UC Berkeley have invented devices that can be used as a drop-in replacement for the resistively shunted junction in niobium circuits. The components that this invention replaces in a circuit layout are a Josephson tunnel junction with a shunting resistor.In the past, such devices have only been achieved by electron-beam lithography, which is not practical for integrated circuits of large complexity.
Original languageEnglish (US)
StatePublished - Aug 24 2001

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Niobium
Tunnel junctions
Integrated circuit layout
High temperature superconductors
Electron beam lithography
Patents and inventions
Resistors
Superconducting materials
Integrated circuits
Electronic equipment
Networks (circuits)

Cite this

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abstract = "Most existing applications of superconductor electronics currently use niobium for the interconnections and resistively shunted Josephson tunnel junctions as the active devices. Niobium is preferred over other materials for interconnections because of its chemical and physical stability and because a key parameter has an advantageous value compared with the so-called {"}high-temperature superconductors{"}.Researchers at ASU and at UC Berkeley have invented devices that can be used as a drop-in replacement for the resistively shunted junction in niobium circuits. The components that this invention replaces in a circuit layout are a Josephson tunnel junction with a shunting resistor.In the past, such devices have only been achieved by electron-beam lithography, which is not practical for integrated circuits of large complexity.",
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AB - Most existing applications of superconductor electronics currently use niobium for the interconnections and resistively shunted Josephson tunnel junctions as the active devices. Niobium is preferred over other materials for interconnections because of its chemical and physical stability and because a key parameter has an advantageous value compared with the so-called "high-temperature superconductors".Researchers at ASU and at UC Berkeley have invented devices that can be used as a drop-in replacement for the resistively shunted junction in niobium circuits. The components that this invention replaces in a circuit layout are a Josephson tunnel junction with a shunting resistor.In the past, such devices have only been achieved by electron-beam lithography, which is not practical for integrated circuits of large complexity.

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