Abstract
We report the first surface characterization of a large, single-grain sample of quasicrystalline AlCuFe. The sample is oriented with its surface perpendicular to a five-fold axis, and has the bulk composition 63.4-24.0-12.6 at%. Following our method of preparation, the surface yields an exceptionally sharp and rich five-fold pattern in low-energy electron diffraction. The spot spacings and symmetries are consistent with expectations for this surface, based upon the unreconstructed structure.
Original language | English |
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Pages (from-to) | L923-L929 |
Journal | Surface Science |
Volume | 385 |
Issue number | 2-3 |
DOIs | |
State | Published - Aug 10 1997 |
Externally published | Yes |
Funding
We are indebted to A.I. Goldman for many useful discussions.T his work was supported by the Ames Laboratory, which is operated for the US Department of Energy by Iowa State University under Contract No. W-7405-Eng-82.
Keywords
- Alloys
- Aluminum
- Low energy electron diffraction (LEED)
- Metallic surfaces