The influence of adsorbed atoms concentration on the temperature coefficient of resonant frequency of the quasi-Rayleigh wave

TL;DR

This paper develops a theoretical model linking adsorbed atom concentration to the temperature coefficient of quasi-Rayleigh wave frequency, proposing a new sensor design based on surface acoustic wave properties.

Contribution

It introduces a self-consistent model connecting adsorbed atoms with quasi-Rayleigh wave behavior, enabling the design of novel radiometric sensors for temperature and surface atom concentration.

Findings

Derived the dispersion relation for quasi-Rayleigh waves on adsorbed surfaces.

Calculated the temperature coefficient of resonant frequency based on the model.

Proposed a new class of sensors utilizing surface acoustic wave properties.

Abstract

Within the model of self-consistent connection of quasi-Rayleigh wave with adsorbed atoms, a method of constructing a new class of radiometric sensors of the temperature and concentration of adsorbed atoms on the surface acoustic waves is proposed. Based on the developed theory of the dispersion and acoustic mode width of a quasi-Rayleigh wave on the adsorbed surface of monocrystals with a Zinc blende structure, the temperature coefficient of the resonant frequency of the surface acoustic wave is calculated depending on the temperature and on the concentration of adsorbed atoms.