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Surface resistivity and vibrational damping in adsorbed layers

✍ Scribed by B.N.J. Persson; D. Schumacher; A. Otto

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 826 KB
Volume: 178
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(91)87057-i

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✦ Synopsis

We derive a simple relation between the change in dc resistivity &J of a thin metallic film due to adsorption of molecules on the film surface and the electron-hole pair damping (lifetime T) of the parallel frustrated translations of the adsorbates. From the measured 3p for several different adsorbate systems, we deduce the corresponding r which ranges from -lo-'* s for chemisorption systems to -10m9 s for physisorption systems. The result of model calculations for the damping of parallel frustrated translations are presented for three limiting cases of the adsorbate-substrate bond, namely for covalent, ionic, and van der Waals bond.

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