Electron-hole pair damping of vibration, thin film resistivity

[vst98]

Hello,
I'm reading something about adsorbate induced surface resistivity changes in thin metal films
and there is often mentioning of electron-hole pair damping, as for example:
"electron-hole pair damping of the parallel(to the surface of thin film) frustrated vibration of the adsorbate(molecules/atoms) ... "

I don't understand what this means clearly, is it that vibration of the adsorbate decays
by producing e-h pairs in the thin film ? But why would that happen ?
Also what is meant by frustrated vibration, what frustrated means in this context ?

 

[BigJDubs]

Electron-hole pair damping refers to a process in which the vibration of the adsorbate is reduced by the creation of electron-hole pairs in the thin film. This is caused by the adsorbate interacting with the electrons in the thin film, which in turn causes the electrons to gain or lose energy. The energy gained or lost by the electrons can then be dissipated as heat through the formation of electron-hole pairs, thus reducing the vibration of the adsorbate.Frustrated vibrations refer to vibrations that are unable to propagate through the thin film due to the presence of obstacles such as other adsorbates or defects in the film. These vibrations cause energy to be stored in the film, rather than dissipating as heat. As a result, the vibration of the adsorbate is slowed down, reducing its amplitude and frequency.