Structural study of the alkali-metal-induced (1×2) Ni(110) and c(2×4) Ni(110)/K/CO surface reconstructions

P. Statiris, P. T. Häberle, T. Gustafsson

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8 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)16513-16520
Number of pages8
JournalPhysical Review B
DOIs
Publication statusPublished - 1 Jan 1993

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