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Proceedings Paper

High-Tc rf SQUID magnetometers
Author(s): Michael Mueck
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Paper Abstract

The discovery of high temperature superconductors has revived the interest in rf SQUIDs, which, in the case of conventional superconductors had been surpassed in performance by the dc SQUID. Several advantages are offered by the rf SQUID, like the requirement for only a single weak link and a low 1/f noise. With high bias frequencies (> 100 MHz) it is possible to obtain flux noise values comparable to dc SQUIDs. At present, HTS rf SQUIDs offer a field sensitivity of less than 100 fT/(root)Hz ( 1 Hz). This is already sufficient for a number of serious applications. This paper reviews recent developments towards practical rf SQUIDs made of high-T(subscript $c/ superconductors.

Paper Details

Date Published: 2 July 1994
PDF: 11 pages
Proc. SPIE 2160, Superconductive Devices and Circuits, (2 July 1994); doi: 10.1117/12.180992
Show Author Affiliations
Michael Mueck, Forschungszentrum Juelich GmbH (Germany)


Published in SPIE Proceedings Vol. 2160:
Superconductive Devices and Circuits
Robert A. Buhrman; John T. Clarke; Ken Daly; Roger H. Koch; Jerome A. Luine; Randy W. Simon, Editor(s)

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