| Numéro |
J. Phys. Colloques
Volume 39, Numéro C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-117 - C6-118 | |
| DOI | https://doi.org/10.1051/jphyscol:1978653 | |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-117-C6-118
DOI: 10.1051/jphyscol:1978653
Phisical-Technical Institute for Low Temperatures of the Ukrainian Academy of Sciences, Kharkov, USSR
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-117-C6-118
DOI: 10.1051/jphyscol:1978653
IMPURITY INTERACTION ANISOTROPY AND QUANTUM DIFFUSION OF 3He IN SOLID 4He
V.A. Slusarev, M.A. Strzhemechny and I.A.BurakhovichPhisical-Technical Institute for Low Temperatures of the Ukrainian Academy of Sciences, Kharkov, USSR
Résumé
On détermine le potentiel d'interaction entre impuretés 3He dans 4He solide à grande distance à partir des constantes élastiques de la matrice. On utilise ensuite le potentiel ainsi déterminé pour calculer la section efficace de collision impuriton-impuriton et le coefficient de diffusion. On montre que la section efficace de collision est très sensible à l'anisotropie du potentiel d'interaction.
Abstract
The lon-range interaction potential for 3He impurities in solid 4He is calculated based on the real values of the dynamic matrix constants. The potential found is used to calculate the impuriton-impuriton cross-section and the diffusion coefficient. It is shown that the anisotropy changes essentially the cross-section.