The five-fold surface of quasicrystalline AlCuFe: preparation and characterization with LEED and AES

The five-fold surface of quasicrystalline AlCuFe: preparation and characterization with LEED and AES

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 exceptionall...

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Veröffentlicht in:Surface science 1997-08, Vol.385 (2), p.L923-L929
Hauptverfasser: Shen, Z., Pinhero, P.J., Lograsso, T.A., Delaney, D.W., Jenks, C.J., Thiel, P.A.
Format: Artikel
Sprache:eng
Schlagworte:
Alloys
Aluminum
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
LEED
Low energy electron diffraction
Metallic surfaces
Metals. Metallurgy
Physics
Quasicrystals
Semi-periodic solids
Structure of solids and liquids
crystallography
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Beschreibung
Zusammenfassung: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.
ISSN:0039-6028
1879-2758
DOI:10.1016/S0039-6028(97)00292-6