The angular and velocity distributions of NO scattered from the Pt(111) crystal surface

摘要

The angular and velocity distributions of NO scattered from the Pt(111) surface have been measured for a crystal temperature range of 475ndash;1200 K and for an incident beam energy range of 265ndash;1390 K. Both angular and velocity distributions confirm the coexistence of inelastic and trappinghyphen;desorption scattering processes. For beams with a kinetic energy of lang;KErang;/2kequal to 265 and 615 K, the molecules scattered into angles near the surface normal were found to be equilibrated with the surface forTsbetween 475 and 900 K.