| Numéro |
J. Phys. Colloques
Volume 39, Numéro C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-35 - C6-36 | |
| DOI | https://doi.org/10.1051/jphyscol:1978617 | |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-35-C6-36
DOI: 10.1051/jphyscol:1978617
1 Laboratory of Atomic and Solid State Physics, Cornell Univevsity, Ithaca, N.Y. USA.
2 Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, N.Y. USA.
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-35-C6-36
DOI: 10.1051/jphyscol:1978617
VISCOSITY OF NORMAL AND SUPERFLUID HELIUM THREE
J.M. Parpia1, D.J. Sandiford1, J.E. Berthold1 and J.D. Reppy21 Laboratory of Atomic and Solid State Physics, Cornell Univevsity, Ithaca, N.Y. USA.
2 Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, N.Y. USA.
Résumé
Nous avons mesuré la viscosité de la composante normale de l'3He dans les phases A et B, et dans le liquide de Fermi normal. Près de Tc, nous pouvons décrire la viscosité réduite avec l'équation (1 - η/ ηc) = A(l - T/Tc)1/2 - B(l - T/Tc). A l'aide des résultats applicables au liquide normal, nous avons calculé le temps de relaxation τ(0)T2 d'une quasi-particule dans l'état normal.
Abstract
The normal fluid viscosity has been measured in the A and B phases of 3He, as well as in the normal Fermi liquid. Near Tc we find that the reduced viscosity can be written in the form (1 - η/ ηc) = A(l - T/Tc)1/2 - B(1 - T/Tc) . Using the normal liquid results we have calculated the normal state quasiparticle relaxation time τ(0)T2.