1. Anisotropic nonlinear elastic properties of an icosahedral quasicrystal
- Author
-
B. Perrin and Jean Yves Duquesne
- Subjects
Physics ,Condensed matter physics ,Icosahedral symmetry ,business.industry ,General Physics and Astronomy ,Quasicrystal ,Acoustic wave ,Polarization (waves) ,Transverse plane ,Nonlinear system ,Optics ,Macroscopic scale ,business ,Anisotropy - Abstract
We show that the nonlinear behavior of transverse acoustic waves can reveal the anisotropic structure of an icosahedral quasicrystal, at the macroscopic level. We report experiments performed in i-Al-Pd-Mn. We observe that a primary transverse acoustic wave can generate a second harmonic transverse acoustic wave. We also observe a specific relation between the polarization directions of those waves. These observations are manifestations on a macroscopic scale of the long-range order in quasicrystals.
- Published
- 2000