Magnetic field sensing with the kinetic inductance of a high- Tc                                                  superconductor

Visa Vesterinen; S. Ruffieux; A. Kalaboukhov; Hannu Sipola; Mikko Kiviranta; D. Winkler; J. F. Schneiderman; Juha Hassel

doi:10.1063/1.5080798

Magnetic field sensing with the kinetic inductance of a high- T_c superconductor

Visa Vesterinen^*, S. Ruffieux, A. Kalaboukhov, Hannu Sipola, Mikko Kiviranta, D. Winkler, J. F. Schneiderman, Juha Hassel

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

5 Citations (Scopus)

Abstract

We carry out an experimental feasibility study of a magnetic field sensor based on the kinetic inductance of the high critical temperature (high-Tc) superconductor yttrium barium copper oxide. We pattern thin superconducting films into radio-frequency resonators that feature a magnetic field pick-up loop. At 77 K and for film thicknesses down to 75 nm, we observe the persistence of screening currents that modulate the loop kinetic inductance. We report on a device with a magnetic field sensitivity of 4 pT/√Hz, an instantaneous dynamic range of 11 µT, and operability in magnetic fields up to 28 µT. According to the experimental results the device concept appears attractive for sensing applications in ambient magnetic field environments.

Original language	English
Article number	045217
Journal	AIP Advances
Volume	9
Issue number	4
DOIs	https://doi.org/10.1063/1.5080798
Publication status	Published - 16 Apr 2019
MoE publication type	A1 Journal article-refereed

Funding

V.V., H.S., M.K. and J.H. acknowledge financial support from Academy of Finland under its Centre of Excellence Program (project no. 312059), and grants no. 305007 and 310087. S.R., A.K., D.W. and J.F.S. acknowledge financial support from the Knut and Alice Wallenberg Foundation (KAW2014.0102), the Swedish Research Council (621-2012-3673) and the Swedish Childhood Cancer Foundation (MT2014-0007). We acknowledge support from the Swedish national research infrastructure for micro and nano fabrication (Myfab) for device fabrication.

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OtaNano

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AU - Winkler, D.

AU - Schneiderman, J. F.

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Magnetic field sensing with the kinetic inductance of a high- T_c superconductor

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Magnetic field sensing with the kinetic inductance of a high- Tc superconductor

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Magnetic field sensing with the kinetic inductance of a high- T_c superconductor