Abstract
Sensing ultra-low magnetic fields has various
applications in the fields of science, medicine and
industry. There is a growing need for a sensor that can
be operated in ambient environments where magnetic
shielding is limited or magnetic field manipulation is
involved. To this end, here we demonstrate a new
magnetometer with high sensitivity and wide
dynamic range. The device is based on the current
nonlinearity of superconducting material stemming from
kinetic inductance. A further benefit of our approach is
of extreme simplicity: the device is fabricated from a
single layer of niobium nitride. Moreover, radio
frequency multiplexing techniques can be applied,
enabling the simultaneous readout of multiple sensors,
for example, in biomagnetic measurements requiring data
from large sensor arrays
Original language | English |
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Article number | 4872 |
Journal | Nature Communications |
Volume | 5 |
DOIs | |
Publication status | Published - 2014 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Physical sciences
- Applied physics