Transmission of sound at the liquid-solid interface of helium under growth
Transmission of sound at the liquid-solid interface of helium under growth
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生长中氦气液固界面处的声音传输
DOI:
10.1051/jphys:01985004601010900
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发表时间:
1985
期刊:
影响因子:
--
通讯作者:
P. Nozières
中科院分区:
文献类型:
--
作者:
M. Uwaha;P. Nozières
With the help of a simple one-dimensional continuum model we establish basic matching conditions of chemical potential and pressure at a growing interface, taking into account interfacial kinetic energies. Using these matching conditions we calculate the sound transmission coefficient under normal incidence when the interface undergoes steady growth. We predict a large correction to the transmission coefficient when the interface mobility is large. We also suggest experiments that might display the effect of steady growth and give direct access to the interface mobility Etablissement, au moyen d'un modele 1D, des conditions de raccordement du potentiel chimique et de la pression pour un interface mobile, compte tenu des diverses energies cinetiques interfaciales. Calcul de la transmission acoustique sous incidence normale pour un interface en translation uniforme. Prediction d'une correction de transmission importante quand l'interface est tres mobile. Suggestion d'experiences mettant cet effet en evidence et donnant acces a la mobilite de l'interface