Strong strain dependence of friction in graphene kirigami allows engineering a negative coefficient of friction
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DOI: 10.1073/pnas.2501728122
Abstract: Significance Frictional force on bodies in relative motion typically increases with the normal load, indicating a positive friction coefficient. Systems with negative friction coefficients have been demonstrated but only with low magnitudes. Using molecular dynamics… read more here.
Keywords: normal load; kirigami; friction; strong strain ... See more keywords