Kapitza transmission through atomically clean silicon (1 1 1) surfaces

K. H. Wiehert, C. Reimann, G. Blahusch, H. Kinder

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

5 Zitate (Scopus)

Abstract

The phonon transmission from atomic clean Si(1 1 1) surfaces into liquid helium was studied by the phonon pulse technique. Reflection experiments and angular resolving transmission experiments were performed to measure the absolute value of the transmission coefficient and its dependence on the phonon emission angle into the solid. A coefficient of the order of 1% was obtained by a chemical preparation method. We found that the observed anomalous transmission is caused by mass defects. Local inhomogeneities caused by the deposition of water molecules on the surface could be visualised by an enhanced transmission.

OriginalspracheEnglisch
Seiten (von - bis)653-655
Seitenumfang3
FachzeitschriftPhysica B: Condensed Matter
Jahrgang219-220
Ausgabenummer1-4
DOIs
PublikationsstatusVeröffentlicht - 1 Apr. 1996

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