Crystallography of quasiperiodic moiré patterns in homophase twisted bilayers

Quiquandon, M.; Gratias, D.

doi:10.1107/S2053273324012087

Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

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Figure 6
Variations of $[|A_{\Phi}|]$ [relation (13)] versus δ according to the point symmetry of the crystalline system of the monolayer (regardless of whether the bilayer is periodic or not): (a) 1, m, (b) 2, 2m, (c) 4, 4m, (d) 3, 3m1, 31m and (e) 6, 6m. In all cases but the oblique and trigonal, the largest value of $[|A_{\Phi}|]$ is obtained for $[\Phi = 0]$ and the smallest for $[\Phi = \pi]$ .