Fig. 4: Twist-angle-independent shearing in TBLM.
From: Determining the interlayer shearing in twisted bilayer MoS2 by nanoindentation
a Independence of shear stresses of TBLM samples on twist angles. Error bars represent standard deviations. The dashed line marks the average τ (τaverage) in all TBLM samples measured over 1-μm-diameter and 1.5-μm-diameter holes. b Atomic configurations of the simulated system. The white sphere represents a nanoindenter with a radius of 1 nm. c Top views of indented MoS2 monolayer with different twist angles relative to the MoS2 substrate. d Nanoindentation force–displacement (F-δ) curves obtained from molecular dynamics simulations, also indicating that the interlayer mechanical interaction remains constant regardless of twist angles. The inset shows the scaling exponents of the force curves.
