Multilayer relaxation of the Ni(311) surface: A new LEED analysis
1985; Elsevier BV; Volume: 149; Issue: 2-3 Linguagem: Inglês
10.1016/0039-6028(85)90072-x
ISSN1879-2758
AutoresD. L. Adams, William Thomas Moore, K.A.R. Mitchell,
Tópico(s)Surface and Thin Film Phenomena
ResumoThe results of a new LEED analysis of the surface structure of Ni(311) are reported, in which relaxation of the first three interlayer vectors from their bulk value has been considered. The surface structure is found to exhibit a damped, oscillatory relaxation of the surface interlayer spacings, with deviations from the bulk value determined to be Δd1 = −15.9%, Δd2 = +4.1% and Δd3 = −1.6% for the first three interlayer spacings. However, the registries between the first four layers parallel to the surface are found to be unrelaxed to within the estimated uncertainties. The latter results are in contrast to recent theoretical predictions, and experimental LEED determinations, of large relaxations of interlayer registries for certain open surfaces of Al, Na and Fe.
Referência(s)