Interaction between a surface acoustic wave and adsorbed atoms
R.M. Peleshchak, M.Ya. Seneta
TL;DR
This paper investigates how surface acoustic waves interact with adsorbed atoms, deriving a dispersion law considering nonlocal elastic effects and calculating the energy width based on atom concentration.
Contribution
It introduces a dispersion law for surface acoustic waves that accounts for nonlocal elastic interactions and mirror image forces, depending on adsorbed atom concentration.
Findings
Dispersion law depends on adsorbed atom concentration
Energy width of surface acoustic mode varies with atom concentration
Nonlocal elastic effects significantly influence wave behavior
Abstract
Within nonlocal elastic interaction between an adsorbed atom and matrix atoms and in consideration of the mirror image forces, a dispersion law of elastic surface acoustic waves is found to the long-wavelength approximation depending on the concentration of adsorbed atoms and the deformation potential of the adatom. The energy width of the surface acoustic mode is calculated depending on the concentration of adsorbed atoms.
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