High-Tc rf SQUID magnetometers

Michael Mueck

doi:10.1117/12.180992

2 July 1994 High-Tc rf SQUID magnetometers

Michael Mueck

Proceedings Volume 2160, Superconductive Devices and Circuits; (1994) https://doi.org/10.1117/12.180992
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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.

Citation Download Citation

Michael Mueck "High-Tc rf SQUID magnetometers", Proc. SPIE 2160, Superconductive Devices and Circuits, (2 July 1994); https://doi.org/10.1117/12.180992

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