Atomic and Molecular Scattering from Solid Surfaces

摘要: Publisher Summary The modulated-beam technique provides researchers with a powerful tool for investigating the collisions of gas molecules solid surfaces. A principal difference between thermal conductivity cell and molecular beam techniques is that incidence angle impinging particles random in former case directed latter. Because AC may depend on incidence, it follows value measured single not necessarily equal to incidence. development an accurate theory energy accommodation represents formidable problem because theories lattice dynamics atomic collisions, both which are incomplete, must be employed. surface usually represented by atom connected spring, variety gas–solid intermolecular potentials have been momentum transfer stream cause experience forces normal tangential directions.