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

    1 Citation (Scopus)

    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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