Mapping the magnetic field generated by a supercurrent in a ring of YBa2Cu3O7−δ

We design and construct a device to map the magnetic field generated by a supercurrent in a rectangular cross section ring of YBa2Cu3O7−δ. For the measurements of the magnetic field, we develop a Gaussmeter based on a commercial Hall effect sensor coupled to an Arduino microprocessor. Our results sh...

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Bibliographic Details
Published in:European journal of physics 2017-10, Vol.38 (6)
Main Authors: Sulca, P D, Gómez, R W
Format: Article
Language:English
Subjects:
Arduino microprocessor
Hall sensor
high T
magnetic field mapping
superconductor
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Summary:We design and construct a device to map the magnetic field generated by a supercurrent in a rectangular cross section ring of YBa2Cu3O7−δ. For the measurements of the magnetic field, we develop a Gaussmeter based on a commercial Hall effect sensor coupled to an Arduino microprocessor. Our results show an asymmetric distribution of the magnetic field intensity measured at a certain distance along a plane parallel to the ring surface. The behavior of the magnetic field intensity with distance along the ring axis is closely related to what is expected for a toroid. Using the Biot-Savart law and the measured magnetic field values, the induced supercurrent is determined.
ISSN:0143-0807
1361-6404
DOI:10.1088/1361-6404/aa86ca