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Author Jenks, C. J. ♦ Chang, S. ♦ Anderegg, J. W. ♦ Thiel, P. A. ♦ Lynch, D. W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ALUMINIUM BASE ALLOYS ♦ PHOTOELECTRON SPECTROSCOPY ♦ PALLADIUM ALLOYS ♦ MANGANESE ALLOYS ♦ ELECTRONIC STRUCTURE ♦ ENERGY-LEVEL DENSITY ♦ COMPARATIVE EVALUATIONS ♦ QUASICRYSTALS
Abstract Photoelectron spectra of a fivefold quasicrystalline alloy Al{sub 70}Pd{sub 21}Mn{sub 9} and a related cubic alloy Al{sub 60}Pd{sub 25}Mn{sub 15} reveal two noteworthy features. The first is that the Pd 3{ital d} lines fall at binding energies which are 2.2 eV higher than in pure Pd. A similar shift is observed for Pd in other alloys. The second noteworthy feature is that the Mn 2{ital p}{sub 3/2} line is very sharp in the quasicrystal. Fitting the experimental peaks with a Doniach-Sunjic line shape suggests that the position and density of Mn states near {ital E}{sub {ital F}} is very sensitive to the structural and/or chemical environment of Mn in the alloys, and that this accounts for the shape of the 2{ital p}{sub 3/2} Mn line. The sharpness of the Mn line may be a fingerprint of the quasicrystalline phase within the AlPdMn family. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-09-01
Publisher Department Ames National Laboratory
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 9
Organization Ames National Laboratory


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