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Figure 1
Representation of a hypothetical (2 + 1)-dimensional incommensurately modulated structure in Flatland. Top left: basic cell showing a molecule of three atoms in basic positions. Top right: assigned modulation for the molecule as a rigid body; displacement functions ux (solid line) and uy (dotted line) as well as a rotation along the geometric center Mathematical equation. Bottom: derived displacive modulation functions for individual atoms as functions of x3 and t.

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ISSN: 2053-2733
Volume 83| Part 1| January 2027|
https://doi.org/10.1107/S2053273326010909