Recent advances in thermometry below 0.1 K
โ Scribed by D.S. Parker; L.R. Corruccini
- Book ID
- 103054920
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 949 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
At very low temperatures, nuclear magnetic resonance frequency decreases with decreasing temperature in an ordered magnetic medium. This phenanen on (frequency pulling) is caused by a coupled motion of the electronic magnetization and the nuclear maqnetization. Application of the NMR frequency pulli
Several aspects of carbon thermometry below 1 K are discussed. Some calibrations, performed on home-made carbon resistors, are presented. The lowest reliable calibration temperature was 25 mK. The reproducibility after thermal cycling of these resistors appeared to be good. Comments are given on our
The simple temperature dependence of carbon and germanium resistors in the variable-range hopping regime is applied for thermometry below 1 K. The linear dependence of In(R) on T -x (1/4 ~< x ~< 1/2) does not require the usual fitting procedure and makes calibration and thermometry more convenient.