Thermal Strain-Driven Periodic Ripples in Ultrathin Sb2Te3/Graphene Heterostructures and their Implications for Strain Engineering

Francisco Munoz, Manuel Fuenzalida, Paula Mellado +4

We report the observation of a highly regular, periodic ripple superstructure with a characteristic wavelength of approximately 8.7 nm in a van der Waals heterostructure composed o…