| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-896 - C6-898 | |
| DOI | https://doi.org/10.1051/jphyscol:19816266 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-896-C6-898
DOI: 10.1051/jphyscol:19816266
Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan
J. Phys. Colloques 42 (1981) C6-896-C6-898
DOI: 10.1051/jphyscol:19816266
INTERACTION OF SOUND WITH VACANCIES IN bcc 3He CRYSTALS
I. Iwasa et H. SuzukiDepartment of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan
Abstract
Longitudinal sound velocity was measured in bcc 3He crystals at frequencies of 10, 30 and 50 MHz as a function of temperature. Above 0.4 K, the velocity always decreased with increasing temperature and no systematic dependence on frequency was observed. The result was interpreted by taking into account the contribution of vacancies to the sound velocity.