Add to ORKGIt is shown experimentally that the superfluid fraction ρs/ρ is continuous and finite at the point at which superflow vanishes in unsaturated helium films. It follows that there is a region of superfluidity without superflow. In addition it is shown that the behavior of the partial molar entropy may account for the disappearance of superflow without requiring that ρs/ρ vanish
Water flowing down a pipe experiences viscous drag that causes it to lose energy and slow down. A su...
Abstract The small mass and significant zero point motion of solid 4 He make it very different from ...
Experiments on helium film flow over a stainless steel beaker rim were carried out in the temperatur...
A simple model, commonly used for describing the behavior of the superfluid film is examined, and it...
The saturated superfluid film is capable of acting as a siphon, allowing the superfluid to drain out...
A theoretical explanation is given for the lowering of the transition temperature, and the increase ...
Nous avons mesuré le taux de dissipation d'énergie dans l'écoulement d'hélium suprafluide sous forme...
The superfluid content of very thin adsorbed helium films has been measured directly, using a quartz...
This thesis describes three independent investigations of the dynamic properties of the superfluid H...
Motivated by the recent discovery that the thickness of a helium film is independent of its state o...
Superfluidity and nucleation concepts demonstrated by superfluid helium in finite geometries which c...
The necessary conditions are examined for a film in contact with its own vapor to flow without dissi...
This thesis deals mainly with soraa investigations on the helium II film in motion. Som...
Nous avons mesuré la vitesse du film d'hélium superfluide aux températures 11 mK - 1 K. Si la différ...
It has recently been shown experimentally that the thickness of a saturated helium film is independe...
Water flowing down a pipe experiences viscous drag that causes it to lose energy and slow down. A su...
Abstract The small mass and significant zero point motion of solid 4 He make it very different from ...
Experiments on helium film flow over a stainless steel beaker rim were carried out in the temperatur...
A simple model, commonly used for describing the behavior of the superfluid film is examined, and it...
The saturated superfluid film is capable of acting as a siphon, allowing the superfluid to drain out...
A theoretical explanation is given for the lowering of the transition temperature, and the increase ...
Nous avons mesuré le taux de dissipation d'énergie dans l'écoulement d'hélium suprafluide sous forme...
The superfluid content of very thin adsorbed helium films has been measured directly, using a quartz...
This thesis describes three independent investigations of the dynamic properties of the superfluid H...
Motivated by the recent discovery that the thickness of a helium film is independent of its state o...
Superfluidity and nucleation concepts demonstrated by superfluid helium in finite geometries which c...
The necessary conditions are examined for a film in contact with its own vapor to flow without dissi...
This thesis deals mainly with soraa investigations on the helium II film in motion. Som...
Nous avons mesuré la vitesse du film d'hélium superfluide aux températures 11 mK - 1 K. Si la différ...
It has recently been shown experimentally that the thickness of a saturated helium film is independe...
Water flowing down a pipe experiences viscous drag that causes it to lose energy and slow down. A su...
Abstract The small mass and significant zero point motion of solid 4 He make it very different from ...
Experiments on helium film flow over a stainless steel beaker rim were carried out in the temperatur...