Experimental observation of carousel-like phason flips in the decagonal quasicrystal Al 60 Cr 20 Fe 10 Si 10 - Laboratoire de Physique des Interfaces et des Couches Minces (PICM) Accéder directement au contenu
Article Dans Une Revue Acta Crystallographica Section A : Foundations and Advances [2014-...] Année : 2021

Experimental observation of carousel-like phason flips in the decagonal quasicrystal Al 60 Cr 20 Fe 10 Si 10

Résumé

Quasicrystals have special crystal structures with long-range order, but without translational symmetry. Unexpectedly, carousel-like successive flippings of groups of atoms inside the ∼2 nm decagonal structural subunits of the decagonal quasicrystal Al 60 Cr 20 Fe 10 Si 10 were directly observed using in situ high-temperature high-resolution transmission electron microscopy imaging. The observed directionally successive phason flips occur mainly clockwise and occasionally anticlockwise. The origin of these directional phason flips is analyzed and discussed.
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Dates et versions

hal-03323030 , version 1 (20-08-2021)

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Zhanbing He, Jean-Luc Maurice, Haikun Ma, Hua Li, Tiantian Zhang, et al.. Experimental observation of carousel-like phason flips in the decagonal quasicrystal Al 60 Cr 20 Fe 10 Si 10. Acta Crystallographica Section A : Foundations and Advances [2014-..], 2021, 77 (5), ⟨10.1107/S2053273321007518⟩. ⟨hal-03323030⟩
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