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Updated: Jun 19, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Measurements of magnetic field stability in inhomogeneous magnetic fields at low temperature
Cedric Hugon1, Jacques-Francois Jacquinot, Dimitris Sakellariou
1CEA, DSM, IRAMIS, SIS2M, LSDRM, CEA Saclay, Gif-sur-Yvette, France. cedric.hugon@cea.fr
Abstract:
We present an original method for field stability measurements in a bath of liquid helium. This method is used to validate the power supply of a superconductive magnet operating in driven mode. The experiment consists in the measurement of the NMR signal of a sample of liquid (3)He, placed inside the field of a test magnet driven by a power supply. The homogeneity of the magnet is a strongly limiting factor for measurements but through the use of an inductively coupled microcoil and careful signal processing, a precision of 5.5 ppm was achieved.
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