https://doi.org/10.1007/s100510050088
Plasmons in icosahedral quasicrystals: An EELS investigation
1
LEPES-CNRS, 25 avenue des Martyrs, BP 166, 38042 Grenoble Cedex 9, France
2
LTPCM, 1130 rue de la piscine, Domaine Universitaire, BP 75, 38402 Saint Martin
d'Hères Cedex, France
Received:
3
November
1998
Revised:
16
July
1999
Published online: 15 February 2000
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 "" 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
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000