Gregory Czap, Kyungju Noh, et al.
APS Global Physics Summit 2025
An estimate of the contribution to the linewidth of vibrations at surfaces from vibrational energy and phase relaxation is presented. It is found that phase relaxation is not important, while decay via emission of two phonons is very important when energetically possible. Thus the Ni-CO stretching vibration for CO on Ni (100) is probably damped via the emission of two phonons. High-frequency modes, such as the C-O stretching vibration, are probably damped via the excitation of electron-hole pairs.
Gregory Czap, Kyungju Noh, et al.
APS Global Physics Summit 2025
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
Julian J. Hsieh
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
R.D. Murphy, R.O. Watts
Journal of Low Temperature Physics