T H E availability of helium-3 has made the temperature region between 0.3 and l ยฐ K one of reasonable accessibility. Above 0.7 ยฐ K temperatures can be found from liquid helium-3 vapour pressure measurements. Below 0"7 ยฐ K, however, the vapour pressure rapidly becomes small, and reliable measurement
A simple magnetic thermometer for use below 1 K
โ Scribed by R.T. Harley; J.C. Gustafson; C.T. Walker
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 166 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0011-2275
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โฆ Synopsis
not more than 30%. After many cooling and warming cycles between 1"5 and 300 K there is practically no change in the contact properties.
Such microcontacts can be used to make miniature sensitive superconducting quantum magnetometers, galvanometers, oscillators, and detectors of high frequency electromagnetic radiation, especially in strip superconducting lines, frequency multipliers, and also in studies of the physics of low temperatures.
The authors are grateful to I. M. Dmitrenko for valuable advice and constant interest in the work.
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