VIBRATIONAL ENERGY RELAXATION OF ADSORBATE VIBRATIONS - A THEORETICAL STUDY OF THE H/SI(111) SYSTEM

摘要

The energy relaxation rate for the first excited stretching vibration of hydrogen atoms adsorbed on an Si(111) surface is calculated treating the motions of the H atoms quantum mechanically and computing the substrate phonon spectrum by molecular dynamics. The relaxation occurs through excitation of three bending modes and emission of a 188 cm(-1) phonon. (C) 1996 American Institute of Physics. [References: 28]