Vibrational Dephasing and Energy Relaxation of Admolecules by Phonons.
STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY
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An investigation is made of the vibrational dephasing of a diatomic molecule absorbed on a surface. Explicit analytic forms for the rate of dephasing by phonons are derived. For comparison, an expression for energy relaxation is given which is appropriate for OH on SiO2. It is found that the dephasing rate is considerably faster for this system than the energy relaxation rate. These conclusions are compared with the results of a recent experiment. Keywords Hydroxyl RadicalSilicon Dioxide System Vibrational Dephasing Energy Relaxation Admolecules Phonons Quantum Mechanical.
- Atomic and Molecular Physics and Spectroscopy