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

被引：2

作者：

Francoual, S ^{[1
]}

Shibata, K

De Boissieu, M

Baron, AQR

Tsutsui, S

Currat, R

Takakura, H

Tsai, AP

Lograsso, TA

Ross, AR

机构：

[1] ENSEEG, CNRS, UMR 5614, LTPCM, F-38042 Grenoble, France

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[3] Japan Atom Energy Res Inst, Neutron Sci Res Ctr, Oarai, Ibaraki 3191195, Japan

[4] SPring 8, Mikazuki, Hyogo 6795198, Japan

[5] NIMS, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

[6] NIMS, Mat Engn Lab, Tsukuba, Ibaraki 3050047, Japan

[7] Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA

[8] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

FERROELECTRICS | 2004年 / 305卷

关键词：

quasicrystals; approximants; lattice dynamics; inelastic X-ray scattering;

D O I：

10.1080/00150190490462937

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on a comparative dynamical study carried out by inelastic X-ray scattering on the i-Cd5.7Yb quasicrystal and on its 1/1 approximant Cd6Yb. 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.

引用

页码：235 / 238

页数：4

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