Medium energy ion scattering (MEIS) is employed to characterize the composition and structure of the five-fold surface of the icosahedral Ag42In42Yb16 quasicrystal. The composition of the surface after sputtering is dominated by Ag and In, and when the surface is annealed at temperatures approaching 430°C, Yb is restored at the surface. The composition is that expected from the bulk structure if the surface is formed at bulk planes involving the centre of rhombic triacontahedral clusters, the building blocks of the system. Structural analysis of MEIS results are also consistent with a surface after annealing that is in close agreement with bulk truncation intersecting the cluster centre.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2017 Mar 28|
|Event||13th International Conference on Quasicrystals, ICQ 2016 - Kathmandu, Nepal|
Duration: 2016 Sep 18 → 2016 Sep 23
ASJC Scopus subject areas
- Physics and Astronomy(all)