Probing the surface structure of quasicrystals via angle-resolved low-energy ion scattering

Cynthia J. Jenks, Robert Bastasz

Research output: Contribution to journalReview articlepeer-review

4 Scopus citations

Abstract

Angle-resolved low-energy ion scattering is a valuable technique for examining the topmost surface layers of materials. Using this technique, information about both composition and structure can be obtained. We discuss the physical basis of this technique and present our findings for the fivefold surface of icosahedral (i-) Al-Pd-Mn. Our results clearly show that the exposed surface has a higher Al content than the bulk and can have fivefold periodicity. Information about frequently occurring interatomic distances on the surface can also be obtained by this technique. We discuss the results and compare them to recent scanning tunneling microscopy studies and to bulk structure models.

Original languageEnglish
Pages (from-to)147-160
Number of pages14
JournalProgress in Surface Science
Volume75
Issue number3-8
DOIs
StatePublished - Aug 2004
Externally publishedYes

Funding

This manuscript has been authored by Iowa State University of Science and Technology under Contract No. W-7405-ENG-82 with the US Department of Energy and by Sandia National Laboratories under Contract No. DE-AC04-94AL85000 also with the US Department of Energy.

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