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  • Snigirev, O.M. V. Lomonosov Moscow State University (author)

Superconducting Quantum Interference Filters as RF amplifiers

  • Article/chapterEnglish2007

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  • 2007

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  • LIBRIS-ID:oai:research.chalmers.se:111e3401-be63-4e27-be1d-78413c69c013
  • https://research.chalmers.se/publication/62425URI
  • https://doi.org/10.1109/TASC.2007.898032DOI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • The superconducting Quantum Interference Filter (SQIF) is a new type of superconducting device which has been recently proposed for highly sensitive magnetometers for absolute magnetic field measurements. It benefits of very high voltage-to-field response, which is, in contrast conventional dc SQUIDs, not periodical. The SQIF can also be used as a radiofrequency amplifier in a similar way as the dc SQUID that can operate in a gigahertz frequency range. We designed a series type of SQIF amplifier that is compatible to conventional YBa2Cu3O7 (YBCO)technology on bicrystal substrates. We present analytical, numericaland scale modeling as well as first electrical measurementsresults at frequencies up to 10 GHz. The SQIF array consists of 50 loops with randomly distributed areas from 0.5 to 1.5 times of 3x30 m2. We also compared it to the regular array of conventional SQUIDs with the same loop areas. We have additional dc contacts to each 5-th SQUIDs and the SQIFs for control and comparison. Devices are fabricated using Josephson junctions with 3 m width formed in YBCO over 24/24 and 12/12 degrees grain boundaries in yttrium-stabilized zirconia (YSZ) bicrystal substrates.

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  • Chukharkin Leonidovich, Maxim,1980M. V. Lomonosov Moscow State University(Swepub:cth)maximc (author)
  • Kalaboukhov, Alexei,1975Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ascry (author)
  • Tarasov, Mikhail,1954National Research University of Electronic Technology (MIET)(Swepub:cth)tarasov (author)
  • Deleniv, Anatoli,1969Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)anatoli (author)
  • Mukhanov, O.HYPRES, Inc. (author)
  • Winkler, Dag,1957Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)winkler1 (author)
  • M. V. Lomonosov Moscow State UniversityChalmers tekniska högskola (creator_code:org_t)

Related titles

  • In:IEEE Transactions on Applied Superconductivity17:2, s. 718-7211558-25151051-8223

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