Saturation of the anomalous Kapitza conductance

H. Schubert, P. Leiderer, H. Kinder

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The reflection coefficient of longitudinal 25-GHz phonons was measured at normal incidence on quartz-liquid He4 interfaces. For clean samples, close agreement with the Khalatnikov theory was found with no indication of anomalous transmission. Samples coated with 300- paraffin, however, showed a substantially lower reflection coefficient in contact with helium. This anomalous reduction was found to depend on the phonon intensity I as I-12, in good accord with the defect model for the Kapitza conductance.

Original languageEnglish
Pages (from-to)2317-2319
Number of pages3
JournalPhysical Review B
Issue number4
StatePublished - 1982


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