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Figure 2
Cross sections of the ODs of the model perpendicular to a twofold perpendicular-space direction. (a) B OD, consisting of a hollow center B1, a second shell B2 generating Yb positions (red) and a third shell B3 generating Cd positions (blue). The center and the third shell are truncated along the fivefold (5f) directions. (b) V OD, consisting of a hollow center V1 plus a second and third shell, V2 and V3, generating Cd positions (blue). The outer shells B3 and V3 include regions (light blue) along the twofold (2f) and threefold (3f) directions, respectively, generating positions subjected to physical-space shifts (see text). (c) E OD with ellipsoidal shape generating Cd positions. The short axis is parallel to a fivefold direction.

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