Open AccessМоделирование проводимости Капицы через шероховатые интерфейсы между твердыми телами
Author(s) -
Б. Лю,
В.И. Хвесюк,
А.А. Баринов
Publication year - 2021
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2021.07.51052.064
Subject(s) - transmission coefficient , range (aeronautics) , interface (matter) , dispersion (optics) , surface finish , work (physics) , statistical physics , materials science , acoustics , mathematics , physics , transmission (telecommunications) , computer science , mechanics , optics , thermodynamics , telecommunications , bubble , maximum bubble pressure method , composite material
In this work, we have formulated and solved the problem of determining the Kapitza conductance across the interface between two solids, taking into account the interface roughness. We use a modified acoustic mismatch model (AMM). The difference from the classic model is that the dispersion properties of acoustic waves are considered. A significant advantage of this model is that the theoretical prediction agrees well with experimental data over a wide temperature range: from 30K to more than 300K. Finally, a theoretical method with the statistical distribution of roughness profiles is used to determine the energy transmission coefficient across the interface.