Leed Investigations Of A Cubic AL-PD-MN (110) Alloy

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1998
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Warren, O.
Shen, Z.
Lograsso, Thomas
Thiel, Patricia
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Lograsso, Thomas
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Ames National Laboratory

Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa.

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Abstract

An Al-Pd-Mn cubic alloy having a bulk chemical composition somewhat analogous to that of the icosahedral Al-Pd-Mn quasicrystal is studied. Our goal is to compare the surface structure and properties of the cubic alloy with those of the quasicrystalline alloy. In this paper, we report the first observations for the (110) surface of the cubic alloy using (primarily) low energy electron diffraction (LEED). The surface is prepared by sputtering and annealing in ultrahigh vacuum (UHV). In addition to the substrate LEED pattern, at least three superstructures evolve sequentially with annealing temperature.

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This article is from MRS Proceedings 553 (1998): 251–256, doi:10.1557/PROC-553-251.

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Fri Jan 01 00:00:00 UTC 1999