Medium energy ion scattering (MEIS) study from the five-fold surface of icosahedral Ag-In-Yb quasicrystal

H. R. Sharma, P. J. Nugent, T. C.Q. Noakes, J. Smerdon, J. Parle, A. P. Tsai, R. McGrath

Research output: Contribution to journalConference articlepeer-review

Abstract

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.

Original languageEnglish
Article number012017
JournalJournal of Physics: Conference Series
Volume809
Issue number1
DOIs
Publication statusPublished - 2017 Mar 28
Event13th International Conference on Quasicrystals, ICQ 2016 - Kathmandu, Nepal
Duration: 2016 Sep 182016 Sep 23

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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