Open access
Datum
2023-09-20Typ
- Journal Article
ETH Bibliographie
yes
Altmetrics
Abstract
The unique properties of quasicrystals are closely related with their complex crystal structures and microstructures. Here, we report the labyrinth structures of decagonal quasicrystal in Al68Cr26Si6, which is scarcely found in quasicrystals. An electron microscopic study of as-cast Al68Cr26Si6 shows a structure of quasiperiodic nanodomains with overall decagonal diffraction symmetry. The quasiperiodic nanodomains are separated by a labyrinthine pattern of edge-connected structural building blocks shaped like squashed (fat) hexagons. The arrangement of the domain walls resembles that of ferroelectric or magnetic domain structures, although these are of different origin and on different scales. By annealing Al68Cr26Si6 at 1,223 K, the domain wall density is strongly increased and appears to be arranged periodically in a specific way. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000633081Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
Cell Reports Physical ScienceBand
Seiten / Artikelnummer
Verlag
Cell PressThema
Decagonal quasicrystal; Decagonal symmetry; Labyrinth pattern; Diffuse scattering; High-angle annual dark-field scanning transmission electron microscopy; Fat hexagonal tilesETH Bibliographie
yes
Altmetrics