Heim, UlrichSchweizer, Rainer J.Koblinger, OttoWelte, MichaelEisenmenger, Wolfgang2010-08-092016-03-312010-08-092016-03-311983347837492http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-55814http://elib.uni-stuttgart.de/handle/11682/4986http://dx.doi.org/10.18419/opus-4969Using quasimonochromatic relaxation phonons emitted by superconducting tunneling functions, the phonon transfer through real solid-liquid helium interfaces was tested. We found an enhancement of the energy transmission if the incident phonons exceed the threshold energy Eo = 0.32 meV. This sharp threshold energy shifts to 0.42 meV if the lighter isotope 3 He is used.eninfo:eu-repo/semantics/openAccessKapitza-Widerstand , Phonon530article