Surface Phonon Dispersion of Ni(100) Measured by Inelastic Electron Scattering

Abstract

The thermal diffuse background between diffracted electron beams has been analyzed with high-energy resolution. The main contribution arises from a surface phonon single-scattering event. The surface phonon dispersion is measured along the $\overline{\ensuremath{\Gamma}}\ensuremath{-}\overline{X}$ direction, and compared with theoretical models.