Medium-energy ion-scattering analysis of the Cu(110) surface

A structural analysis of the interplanar spacing (d) of the Cu(110) surface is reported, using medium-energy-ion scattering in a channeling and blocking experiment. Evidence is presented for a model with a multilayer oscillatory change in d with Δ$d_{12}$=(-7.5±1.5)% and Δ$d_{23}$=(+2.5±1.5)%. These values are in good agreement with those found with low-energy-electron diffraction but Δ$d_{12}$ is larger than that found by previous ion-scattering experiments. The model provides excellent agreement between data and Monte Carlo simulations.