[Dynamique des quasicristaux]
La dynamique de réseau des quasicristaux diffère de celle des structures avec periodicité de réseau sur un certain nombre de points. Ils partagent cette propriété avec dʼautres structures apériodiques. La dynamique des quasicristaux est discutée dans le contexte de ces structures apériodiques en général, mais les aspects spécifiques des quasicristaux sont soulignés. La dynamique de réseau est assez bien comprise maintenant. Un aspect particulier des excitations des structures apériodiques est lié à la possibilité de décrire ces systèmes dans un superespace. Ces excitations « phasons » sont discutées spécifiquement.
The (lattice) dynamics of quasicrystals differs in many aspects from that of lattice periodic systems. This they have in common with other aperiodic crystals. The dynamics of quasicrystals is discussed here in the context of these general aperiodic crystals, but the special features of quasicrystals are stressed. The lattice dynamics is now fairly well understood. Especially for aperiodic crystals, there are excitations related to the possibility to describe the systems in superspace. These ‘phasons’ are discussed in particular.
Mot clés : Quasicristal, Dynamique, Phasons
Ted Janssen 1 ; Marc de Boissieu 2
@article{CRPHYS_2014__15_1_58_0, author = {Ted Janssen and Marc de Boissieu}, title = {Dynamics of quasicrystals}, journal = {Comptes Rendus. Physique}, pages = {58--69}, publisher = {Elsevier}, volume = {15}, number = {1}, year = {2014}, doi = {10.1016/j.crhy.2013.09.011}, language = {en}, }
Ted Janssen; Marc de Boissieu. Dynamics of quasicrystals. Comptes Rendus. Physique, Volume 15 (2014) no. 1, pp. 58-69. doi : 10.1016/j.crhy.2013.09.011. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2013.09.011/
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