Sang-Min Park, Charles T. Rettner, et al.
Macromolecules
The rotational state distributions of NO molecules scattered off the (1 x 1)H-covered Ru(0001) surface have been investigated by resonance enhanced multi-photon ionisation (REMPI). Angular and energy distributions reported earlier for this scattering channel, show an angular spread of only ≃8° (θi = 60°, Ei = 2.1 eV), combined with small translational energy loss in the collision (Ef/Ei = 0.91). These observations suggest scattering from a very weakly corrugated surface, a 'molecular mirror', and a high probability to yield cold rotational distributions. The present experiments, however, reveal substantial rotational excitation, accompanied by rotational rainbows for higher quantum numbers (J > 20). The rotational temperatures increase from
Sang-Min Park, Charles T. Rettner, et al.
Macromolecules
Bart Berenbak, Bernd Riedmüller, et al.
Physical Chemistry Chemical Physics
Gregory S. Doerk, Joy Y. Cheng, et al.
Nature Communications
Joy K. Cheng, Charles T. Rettner, et al.
Advanced Materials