Granular superconducting quantum interference device and apparat

Details Granular superconducting quantum interference device and apparat Granular superconducting quantum interference device and apparat

1975-06-23

1977-05-24

Corcoran, Robert J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

29599, 307306, 357 5, G01R 3302

Patent

active

040258440

ABSTRACT:
Superconducting quantum interference devices (SQUID's) are described including two superconductor pathways connected together by a narrow bridge of a granular superconductor material having a high normal state electrical resistivity of about 10.sup..sup.-4 to 10.sup..sup.-2 ohm-cm. The latter material is preferably a granular superconductor including superconductor grains having a low normal state electrical resistivity embedded in a matrix of a material having a high normal state electrical resistivity.
Also described is the use of such devices in linear applications, such as in a magnetometers, and digital applications, such as switches, flip-flops, and memory cells.

REFERENCES:
patent: 3301643 (1967-01-01), Cannon et al.
patent: 3504283 (1970-03-01), Meservey
patent: 3522492 (1970-08-01), Pierce
patent: 3824457 (1974-07-01), Strongin et al.
Goodkind et al., New Fabrication of Superconducting Flux Detector; Rev. of Sci. Inst., vol. 42, No. 8, (Aug. 1971), pp. 1264-1265.

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