Surface acoustic wave resonance spectroscopy (SAWRS) as a novel technique to study surface phenomena

A new method is proposed for investigating surface phenomena based on the observation of the acoustic vibration modes of surface structures at high resolution. Experimental SAWR spectra can be obtained under a narrow frequency band excitation (Δω/ω ∼ 10−5) in a wide range (100 kHz–10 MHz). Applicati...

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Bibliographic Details
Published in:Surface and interface analysis 1994-07, Vol.22 (1-12), p.585-589
Main Authors: Boronin, A. I., Kvon, R. I., Prosvirin, I. P., Brezhnev, V. N., Ostanin, V. P., Seriklaev, I. E., Tupikov, V. S., Belyaev, A. N.
Format: Article
Language:English
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Summary:A new method is proposed for investigating surface phenomena based on the observation of the acoustic vibration modes of surface structures at high resolution. Experimental SAWR spectra can be obtained under a narrow frequency band excitation (Δω/ω ∼ 10−5) in a wide range (100 kHz–10 MHz). Application of this method to Ag(111) and Pt(100) single crystals reveals the existence of very narrow resonant acoustic vibration modes with Δω/ω ∼ 10−3–10−4 demonstrating strong anomalies in the phonon energy distribution function of solids. The behaviour of these anomalous peaks is very sensitive to surface structure and to the presence of adsorbates.
ISSN:0142-2421
1096-9918
DOI:10.1002/sia.7402201124