Inelastic low-energy electron diffraction by the antimony (111) surface
Moskalev A. A., Tsoi V. S.
A narrowing of a reflection corresponding to inelastic low-energy electron diffraction with respect to the corresponding reflection of elastic low-energy electron diffraction has been discovered. This contraction is of a resonant nature in the electron energy. The directions of the elastic and inelastic diffraction peaks are the same. The observations are explained in terms of a resonant capture of an incident electron to a surface state [E. G. McRae, Rev. Mod. Phys. 51, 541 (1979)].