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Plasmons in icosahedral quasicrystals: An EELS investigation

  • T. Grenet
  • M.C. Cheynet

Abstract:

We present the results of an electron energy loss spectroscopy (EELS) investigation of the icosahedral quasicrystals i-Al-Cu-Fe, i-Al-Pd-Mn and i-Al-Pd-Re. The spectra of the three systems studied are very similar. Their main contribution comes from a broad plasmon like peak, which can be interpreted as an “s-p" electron plasmon damped by “d" electron interband transitions. We show that it is similar to those found in other simple crystalline aluminum-transition metal alloys, so that no specificity related to the quasicrystalline order of the alloys dominates.

PACS. 71.23.Ft Quasicrystals - 71.45.Gm Exchange, correlations, dielectric and magnetic functions, plasmons 

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2000

Authors and Affiliations

  • T. Grenet
    • 1
  • M.C. Cheynet
    • 2
  1. 1.LEPES-CNRS, 25 avenue des Martyrs, BP 166, 38042 Grenoble Cedex 9, FranceFR
  2. 2.LTPCM, 1130 rue de la piscine, Domaine Universitaire, BP 75, 38402 Saint Martin d'Hères Cedex, FranceFR

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