3V. N. Karazin National University, Kharkiv 61077, Ukraine pos Анотація:
Received May 24, 2016
The effect on the Kapitza thermal resistance of dynamic surface monolayer at the interface between solid and superfluid helium is analyzed. As such, the monolayer of adsorbed on the solid surface impurity atoms, weakly coupled to the substrate, is considered. The resonance of the incident from helium phonons with oscillations in the two-dimensional system can significantly increase the heat transfer through such an interface, as compared with the case of an atomically clean interface. Both scalar and vector models of the interface are considered. The review presents new results in the macroscopic dynamics of the, taking into account the anharmonicity of the lattice (nonlinear effects).
PACS: 62.60.+v Acoustical properties of liquids; PACS: 65.80.–g Thermal properties of small particles, nanocrystals, nanotubes, and other related systems.
Key words: Kapitza thermal resistance, phonons, dynamic surface monolayer, interface between two media.