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Mössbauer effect study of one-dimensional and two-dimensional quasicrystalline alloys in the AlPdFe system

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
95
Issue
1
Identifiers
DOI: 10.1016/0038-1098(95)80082-4
Keywords
  • A. Quasicrystals
  • E. Nuclear Resonances

Abstract

Abstract Room temperature 57Fe Mössbauer effect measurements of the one-and two-dimensional quasicrystalline phases of Al 75Pd 15Fe 10 are reported. Both materials show Mössbauer spectra with asymmetric doublets which have been analyzed in terms of a distribution of quadrupole splittings, and in terms of a discrete expansion of quadrupole splittings. The one-dimensional material shows the following characteristics compared with the two-dimensional material; (1) a larger mean quadrupole splitting, (2) a more positive mean isomer shift and (3) a broader distribution of quadrupole splittings. These results indicate that the local Fe environments in the one-dimensional material are less isotropic than in the two-dimensional material and that this material is characterized by a higher concentration of open volume defects.

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