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Sliding on the edge

Heterogeneous microscale contacts between molybdenum disulfide and graphene or hexagonal boron nitride layers demonstrate ultralow friction independent of their relative orientation with residual drag that originates from edge effects.

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Fig. 1: Artistic view of increased edge energy dissipation at the heterogeneous superlubric contact of layered materials.

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Correspondence to Oded Hod or Michael Urbakh.

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Hod, O., Urbakh, M. Sliding on the edge. Nat. Mater. 21, 12–14 (2022). https://doi.org/10.1038/s41563-021-01112-1

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