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

doi:10.1080/00150190490462937

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 journal › Article › peer-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 language	English
Pages (from-to)	235-238
Number of pages	4
Journal	Ferroelectrics
Volume	305
DOIs	https://doi.org/10.1080/00150190490462937
Publication status	Published - 2004 Jan 1
Externally published	Yes

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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10.1080/00150190490462937

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

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.",

keywords = "Approximants, Inelastic X-ray scattering, Lattice dynamics, Quasicrystals",

author = "S. Francoual and K. Shibata and {De Boissieu}, M. and Baron, {A. Q.R.} and S. Tsutsui and R. Currat and H. Takakura and Tsai, {A. P.} and Lograsso, {T. A.} and Ross, {A. R.}",

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doi = "10.1080/00150190490462937",

language = "English",

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T1 - Experimental study of phonon dynamics in the icosahedral i-CdYb phase and its 1/1 periodic approximant

AU - Francoual, S.

AU - Shibata, K.

AU - De Boissieu, M.

AU - Baron, A. Q.R.

AU - Tsutsui, S.

AU - Currat, R.

AU - Takakura, H.

AU - Tsai, A. P.

AU - Lograsso, T. A.

AU - Ross, A. R.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - 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.

AB - 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.

KW - Approximants

KW - Inelastic X-ray scattering

KW - Lattice dynamics

KW - Quasicrystals

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DO - 10.1080/00150190490462937

M3 - Article

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VL - 305

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EP - 238

JO - Ferroelectrics

JF - Ferroelectrics

SN - 0015-0193

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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