Multifunctional design of high-transition-temperature directly coupled superconducting-quantum-interference-device magnetometers on a chip

Kuen Lin Chen, C. H. Wu, J. C. Chen, H. C. Yang, J. H. Chen, H. E. Horng

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Abstract

We have designed four multifunctional high-transition-temperature directly coupled superconducting-quantum-interference-device (SQUID) magnetometers on a 10×10 mm2 SrTi O3 bicrystal substrate. Each magnetometer is composed of two serial bare SQUIDs. These magnetometers can be connected to four kinds of first-order electronic planar gradiometers or two kinds of second-order electronic planar gradiometers by using analog subtracting electronic circuits. The noise spectra of each magnetometer, two first-order electronic planar gradiometers, and a second-order planar gradiometer were measured. We measured the small magnetic signal generated from a double D coil to show that this design could supplement the deficiency of a magnetometer.

Original languageEnglish
Article number192501
JournalApplied Physics Letters
Volume89
Issue number19
DOIs
Publication statusPublished - 2006 Nov 16

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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