Surface acoustic wave resonance spectroscopy (SAWRS) as a novel technique to study surface phenomena
| Autor: | V. S. Tupikov, V. N. Brezhnev, R. I. Kvon, I. E. Seriklaev, Andrei I. Boronin, Igor P. Prosvirin, A. N. Belyaev, V. P. Ostanin |
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| Rok vydání: | 1994 |
| Předmět: |
Novel technique
Chemistry business.industry Frequency band Surface acoustic wave Surfaces and Interfaces General Chemistry Condensed Matter Physics Molecular physics Spectral line Surfaces Coatings and Films Distribution function Optics Materials Chemistry Surface structure business Spectroscopy Excitation |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1096-9918 0142-2421 |
| DOI: | 10.1002/sia.7402201124 |
| Popis: | 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 -44 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 |
| Databáze: | OpenAIRE |
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