Phonon-Quasiparticle Scattering in Dilute 3He/4He Mixtures
Phonon-3He quasiparticle scattering times in dilute mixtures of 3He in liquid 4He have been determined using the fast-heat-pulse technique. These scattering times were found to be in reasonably good numerical agreement with those theoretically calculated for Rayleigh-like scattering by Baym and Ebner. The scattering is shown to exhibit a strong pressure dependence.
Unable to display preview. Download preview PDF.
- (5).As pointed out in Ref. 6, the phonon absorption rate proposed by Baym and Ebner is expected to be negligible in the temperature and concentration range considered here.Google Scholar
- (7).R. B. Kummer, V. Narayanamurti, and R. C. Dynes, submitted to Phys. Rev. B.Google Scholar