News: Overcoming Nanoscale Friction Barriers in Transition Metal Dichalcogenides

Understanding and predicting frictional response of surfaces in relative motion is the result of intrinsic complexity of highly non-equilibrium processes in any tribological contacts. Our quantum mechanic investigations at the atomic scale on Van der Waals MX2 (M=transition metal cation, X=chalcogen anion) Transition Metal Dichalcogenides show how to design tribomaterials at the atomic scale, and how to tune friction energy barriers by controlling external stimuli (load, charge injection, electric field bias) or intrinsic materials features (structural distortions, chemical composition, charge flow). A new theoretical Ti:MoS2 phase has been designed and the relative experimental validation is ongoing.