Figure 5: Structural tiling of (3/2, 2/1)2 approximant.
From: Multiple quasicrystal approximants with the same lattice parameters in Al-Cr-Fe-Si alloys
Atomic resolution HAADF-STEM images along the b axis of the (3/2, 2/1)2 approximant (from Sample 2). (a) The structure is depicted using the hexagon-boat-star (HBS) tiling model, where the same oriented H tiles are drawn up in the same color. Left: monoclinic M1ACFS approximant; right: (3/2, 2/1)2 approximant. (b) The structure is described by SLT blocks. The structural characteristics of the approximants and the phase boundary between them are clearly demonstrated in (b).
