National Academy of Sciences
Proceedings of the National Academy of Sciences, Volume 122, Issue 28, July 2025.
SignificanceFrictional 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 …
Read More
Strong strain dependence of friction in graphene kirigami allows engineering a negative coefficient of friction
00:19
Proceedings of the National Academy of Sciences, Volume 122, Issue 28, July 2025. SignificanceFrictional 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 …
