On the problem of the correct interpretation of phason elasticity in quasicrystals

Gerrit Coddens (1)

1 LSI - Laboratoire des Solides Irradiés - Irradiated Solids Laboratory

Recently Francoual et al. claimed to have observed the dynamics of long-wavelength phason fluctuations in i-AlPdMn quasicrystals. We will show that the data reported call for a more detailed development of the elasticity theory of Jaric and Nelsson in order to determine the nature of small phonon-like atomic displacements with a symmetry that follows the phason elastic constants.

Mots clés: dynamics; quasicristals

Domaines: Systèmes désordonnés et réseaux de neurones [cond-mat.dis-nn]

Gerrit Coddens. On the problem of the correct interpretation of phason elasticity in quasicrystals. 2005. ⟨hal-00018487⟩