Characterization of Josephson-vortex flow device as a magnetic sensor

We have found periodic oscillations in the Josephson-vortex flow resistance of the intrinsic Josephson junctions of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta// single crystal under the parallel magnetic fields from a few kOe to more than 70 kOe. The oscillations indicate a precise and an absol...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2005-06, Vol.15 (2), p.916-919
Main Authors: Hirata, K., Ooi, S., Sadki, E.H., Shan Yu, Mochiku, T.
Format: Article
Language:English
Subjects:
Applied sciences
Bi-2212
Bismuth
Coils
Electrical resistance measurement
Electronics
Exact sciences and technology
Flow resistance
Fluid flow measurement
Josephson devices
Josephson junctions
Magnetic devices
MAGNETIC FIELD
Magnetic field measurement
Magnetic fields
Magnetic modulators
Magnetic sensors
Modulation
Oscillations
Performance evaluation
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Sensors
SINGLE CRYSTALS
Strontium
SUPERCONDUCTIVITY
SUPERCONDUCTORS
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Summary:We have found periodic oscillations in the Josephson-vortex flow resistance of the intrinsic Josephson junctions of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta// single crystal under the parallel magnetic fields from a few kOe to more than 70 kOe. The oscillations indicate a precise and an absolute measurement at higher fields. To demonstrate the characteristics of the magnetic sensor, we have performed modulation measurements with small coils producing a few Oe in Tesla order magnetic fields and have studied details on the flow resistance in the magnetic field and temperature cycles. The results show a high performance as a magnetic sensor.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2005.850118