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. 2020 Sep 16;11:4657. doi: 10.1038/s41467-020-18429-1

Fig. 7. Directional and orientational locking of clusters driven across periodic surfaces.

Fig. 7

a Mesoscopic colloidal cluster whose direction of motion (green arrow) substantially deviates from that of the driving force (white arrow) due to the interaction with the underlying periodic substrate potential. In addition to the direction of motion the orientation of the cluster becomes locked during the sliding process. Particles are colored corresponding to their displacement relative to the nearest substrate potential well142. b AFM-manipulated crystalline gold nanoparticles on molybdenum disulfide also displaying a pronounced deviation between the direction of translation (blue arrow) versus external forcing (red arrow)141, 10.1103/PhysRevB.98.165417.