The adsorption of alkali metals on fcc(110) surfaces is known to induce (1×n) n=2,3,... missing row (MR) reconstructions. We have used medium-energy ion scattering to study the structure of the (1×2) Ni(110)/K and the c(2×4) Ni(110)/K/CO surfaces. Our data for the (1×2) reconstruction are consistent with a MR structure. This reconstruction has the interesting feature that the first-to-second-layer separation (d12) is expanded and not strongly contracted as has been observed for all other MR-reconstructed fcc(110) surfaces studied to date. For the c(2×4) Ni(110)/K/CO system, the structural parameters are very similar to those for the (1×2) system. Consequently, the c(2×4) symmetry is due to CO ordering on top of a MR reconstructed substrate. © 1993 The American Physical Society.
Statiris, P., Häberle, P. T., & Gustafsson, T. (1993). Structural study of the alkali-metal-induced (1×2) Ni(110) and c(2×4) Ni(110)/K/CO surface reconstructions. Physical Review B, 16513-16520. https://doi.org/10.1103/PhysRevB.47.16513