Kapitza conduction by thin lossy surface layers

H. Kinder, K. Weiss

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The authors consider the Kapitza conductance due to absorption and emission of phonons by a lossy surface layer which has complex elastic constants and/or complex mass density. They find a series connection of two heat resistances, one between the layer and the solid, and another one between the layer and the helium. A propagator matrix formalism is used to calculate the phonon absorption coefficients, and hence the Kapitza conductance, as a function of angle, frequency and layer thickness in the limit of continuum acoustics with anisotropy. The resulting conductance is large enough to account for the Kapitza anomaly.

Original languageEnglish
Article number006
Pages (from-to)2063-2080
Number of pages18
JournalJournal of Physics Condensed Matter
Issue number14
StatePublished - 1993


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