Open AccessНовый подход к расчету проводимости Капицы между твердыми телами
Author(s) -
В.И. Хвесюк,
Б. Лю,
А.А. Баринов
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.19.50045.18367
Subject(s) - cascade , conductance , physics , dispersion (optics) , quantum , thermoelectric effect , debye , range (aeronautics) , condensed matter physics , statistical physics , quantum mechanics , materials science , engineering , chemical engineering , composite material
In connection with the development of various nanosystems (computer electronic circuits, thermoelectric devices, quantum cascade lasers, etc.), the problem of calculating the Kapitza conductance between various materials is very acute. An improved acoustic mismatch model for calculating the Kapitza conductance is proposed. The disadvantage of the currently existing model is that it uses the Debye approximation. This limits the applicability of the model to the low temperature region. It is shown that taking into account the dispersion of the waves ensures good agreement between the theory and experiment in a much wider temperature range than with modern models.