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Figure 5 Q-peaks (yellow spheres) caused by correlation effects due to pseudo-translation and their positions with respect to the Br atoms (green smaller spheres). Q1, located close to Br1, is created by translation of Br2 and Q2 by translation of Br1 by half a unit cell along the (0 1 1) direction. View is down the direction of the pseudotranslation as in Fig. 3. |