Superconducting device

Details Superconducting device Superconducting device

1997-04-29

1998-11-10

Crane, Sara W.

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Tunneling through region of reduced conductivity

257 31, 326 5, H01L 2906

Patent

active

058347941

ABSTRACT:
Disclosed is a superconducting device comprising a logic SQUID and a readout SQUID magnetically coupled with the logic SQUID, which are fabricated using a single layer of an oxide high-temperature superconductor, wherein the logic SQUID comprising a superconducting loop constituted by a first superconducting line, a second superconducting line arranged to be parallel to the first superconducting line, third and fourth superconducting lines provided to connect the first and second superconducting lines, and two Josephson junctions formed in the third and fourth superconducting lines, and widths W.sub.1 and W.sub.2 of the first and second superconducting lines are larger than a distance d between them, the width W.sub.2 is larger than the width W.sub.1, and the widths W.sub.1 and W.sub.2 are larger than the widths W.sub.3 and W.sub.4 of the third and fourth superconducting lines.

REFERENCES:
patent: 4330841 (1982-05-01), Yamada et al.
patent: 5218297 (1993-06-01), Nakane et al.
patent: 5365476 (1994-11-01), Mukhanov
patent: 5443567 (1995-08-01), Jillie et al.
Forrester, et al. "A Single Flux Quantum Shift Register Operating at 65k", IEEE Transations on Applied Superconductivity, vol. 5, No. 2 Jun.(1995), pp. 3401-3404.

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