𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Observation of a maximum roton velocity in superfluid 4He

✍ Scribed by S. Balibar; J. Buechner; B. Castaing; C. Laroche; A. Libchaber


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
197 KB
Volume
60
Category
Article
ISSN
0375-9601

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


The velocity of second sound near the la
✍ M.J. Adriaans; D.R. Swanson; J.A. Lipa πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 163 KB

We report new high precision data on the velocity of second sound close to the lambda transition of 4He at the saturated vapor pressure. The second sound wave is detected by a powdered salt pill of copper ammonium bromide in direct contact with the liquid helium. With a thermometer noise of < 10-1Β°K

35. Critical velocities of 4He in a supe
✍ F.A. Staas; R. De Bruyn Ouboter πŸ“‚ Article πŸ“… 1958 πŸ› Elsevier Science βš– 67 KB

LIgUID HELIUM S 143 heat transport by liquid 4He through a narrow slit at eleven temperatures between 1. IΒ°K and 2. IΒ°K for values of AT up to 1000 millidegrees. The slit (1.9 cm long and 2 microns wide) connects two reservoirs of liquid helium, one thermally isolated and fitted with a heater, the o