Experimental study of phonon dynamics in the icosahedral i-CdYb phase and its 1/1 periodic approximant

S. Francoual, K. Shibata, M. De Boissieu, A. Q.R. Baron, S. Tsutsui, R. Currat, H. Takakura, A. P. Tsai, T. A. Lograsso, A. R. Ross

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We report on a comparative dynamical study carried out by inelastic X-ray scattering on the i-Cdit5.7Yb quasicrystal and on its 1/1 approximant Cdit6Yb. The phonon response function is shown to be very similar in both systems, with well defined acoustic modes for small wavevector values and dispersionless optical bands centred around 4, 9 and 16 meV. However, the acoustic regime is found to be more limited in the i-phase.

Original languageEnglish
Pages (from-to)235-238
Number of pages4
JournalFerroelectrics
Volume305
DOIs
Publication statusPublished - 2004 Jan 1
Externally publishedYes

Keywords

  • Approximants
  • Inelastic X-ray scattering
  • Lattice dynamics
  • Quasicrystals

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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