Behaviour of thick film resistors (Philips type RC-01) as low temperature thermometers in magnetic fields up to 5 T

The properties of some RuO 2 thick film resistors, Philips type RC-01, have been studied between 15 mK and 4 K in magnetic fields up to 5 T. Resistors with room temperature resistance values between ≈ 1.0 and 4.7kΩ appear to have sufficient sensitivity, dR/RdT, for them to be used as secondary therm...

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Bibliographic Details
Published in:Cryogenics (Guildford) 1986, Vol.26 (1), p.3-8
Main Authors: Bosch, W.A., Mathu, F., Meijer, H.C., Willekers, R.W.
Format: Article
Language:English
Subjects:
magnetic fields
resistors
thermometers
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Summary:The properties of some RuO 2 thick film resistors, Philips type RC-01, have been studied between 15 mK and 4 K in magnetic fields up to 5 T. Resistors with room temperature resistance values between ≈ 1.0 and 4.7kΩ appear to have sufficient sensitivity, dR/RdT, for them to be used as secondary thermometers for temperatures < 4 K Thick film resistors have several advantages over carbon composition resistance thermometers which are used more generally, e.g. a better reproducibility, an easier method of mounting on metal surfaces and a lower heat capacity. However, in contrast to what has been published so far about thick film resistors from other manufactures, the type RC-01 shows a considerable magnetoresistance, which is of the same order as that found for carbon resistors.
ISSN:0011-2275
1879-2235
DOI:10.1016/0011-2275(86)90187-6