Article
Article
Magnetic thermometer
Article By:
Krusius, Matti Low Temperature Laboratory, Helsinki University of Technology, Helsinki, Finland.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.398650
A thermometer whose operation is based on Curie's law, which states that the magnetic susceptibility of noninteracting (that is, paramagnetic) dipole moments is inversely proportional to absolute temperature. Magnetic thermometers are typically used at temperatures below 1 K (−458°F). The magnetic moments in the thermometric material may be of either electronic or nuclear origin. Generally the magnetic thermometer must be calibrated at one (or more) reference temperatures. See also: Electron; Nuclear moments; Paramagnetism
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