Experimental observation of carousel-like phason flips in the decagonal quasicrystal Al60Cr20Fe10Si10
Abstract
Quasicrystals have special crystal structures with long-range order, but without translational symmetry. Unexpectedly, carousel-like successive flippings of groups of atoms inside the similar to 2 nm decagonal structural subunits of the decagonal quasicrystal Al60Cr20Fe10Si10 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. Mehr anzeigen
Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
Acta Crystallographica Section A: Foundations and AdvancesBand
Seiten / Artikelnummer
Verlag
BlackwellThema
decagonal quasicrystals; TEM; transmission electron microscopy; atomic clusters; clockwise phason flips