| Numéro |
J. Phys. Colloques
Volume 39, Numéro C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-316 - C6-317 | |
| DOI | https://doi.org/10.1051/jphyscol:19786140 | |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-316-C6-317
DOI: 10.1051/jphyscol:19786140
1 Laboratoriun für Festkörperphysik, Swiss Federal Institute of Technology, 8093 Zürich, Switzerland
2 Swiss Federal Institute of Technology.
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-316-C6-317
DOI: 10.1051/jphyscol:19786140
SURFACE DEFORMATION AND SURFACE MOTION DUE TO STANDING SECOND SOUND WAVES IN HELIUM I I
S.G. Eckstein1, 2, Y. Eckstein1, 2, J.L. Olsen1 and H. Sigg11 Laboratoriun für Festkörperphysik, Swiss Federal Institute of Technology, 8093 Zürich, Switzerland
2 Swiss Federal Institute of Technology.
Résumé
On a observé la déformation d'une surface libre d'hélium liquide en présence d'ondes stationnaires de second son. L'amplitude mesurée est 10 à 100 fois inférieure à celle correspondant à la pression associée au second son loin de la surface. La dépendance temporelle de la surface est négligeable.
Abstract
The amplitude of the deformation of the free surface of liquid helium in the presence of standing waves of second sound has been observed. The wave height is 10-100 times smaller than that corresponding to the second sound pressure away from the surface. The time dependence of the surface level is vanishingly small.