Heat release, refrigeration and thermometry in {sup 3}He-{sup 4}He solutions at very low temperatures
Journal Article
·
· Journal of Low Temperature Physics
- Univ. of Nottingham (United Kingdom)
- Universitaet Bayreuth (Germany)
We report on our measurements performed in liquid {sup 3}He-{sup 4}He solutions in the microkelvin temperature range at the Bayreuth nuclear demagnetization cryostat. One aspect of our work is the application of the vibrating wire technique for thermometry in the ballistic regime of phase-separated solutions. The establishment of reliable thermometry along with the particular design of our experimental cells enables us to study two main limitations on the minimum temperature of about 100 {mu}K achieved in {sup 3}He-{sup 4}He solutions so far: the thermal resistance between the liquid and the cell, and the origins of the heat leaks.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 198161
- Report Number(s):
- CONF-950676--
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 1-2 Vol. 101; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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