Magnetic field sensing with the kinetic inductance of a high-Tc superconductor
Journal article, 2019

We carry out an experimental feasibility study of a magnetic field sensor based on the kinetic inductance of the high critical temperature (high-T c ) 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.

Author

V. Vesterinen

Technical Research Centre of Finland (VTT)

Silvia Ruffieux

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Alexei Kalaboukhov

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

H. Sipola

Technical Research Centre of Finland (VTT)

M. Kiviranta

Technical Research Centre of Finland (VTT)

Dag Winkler

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Justin Schneiderman

University of Gothenburg

J. Hassel

Technical Research Centre of Finland (VTT)

AIP Advances

2158-3226 (ISSN) 21583226 (eISSN)

Vol. 9 4 045217

Subject Categories

Other Physics Topics

Fusion, Plasma and Space Physics

Condensed Matter Physics

DOI

10.1063/1.5080798

More information

Latest update

7/26/2019