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 language | English |
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Pages (from-to) | 147-160 |
Number of pages | 14 |
Journal | Progress in Surface Science |
Volume | 75 |
Issue number | 3-8 |
DOIs | |
State | Published - Aug 2004 |
Externally published | Yes |
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.