Local Structural Properties of Twisted Bilayer MoS2 Moiré Superlattice

Recently, Moiré superlattices (MSL) of vdW structures have brought a new dimension to 2D electronics. MSLs are formed in homo or hetero-structured bilayer systems due to lattice mismatch or twist angle between them. The modified interlayer coupling in different domains in such MSLs result in electron localization, which is manifested in the band-structure as flat-bands that facilitate electron correlations. Owing to this, remarkable effects such as superconductivity, have been observed in such systems. Detailed structural studies of 2D-materials using surface-sensitive X-ray methods are sparse, but feasible as we have already demonstrated. Here, we aim to study the local atomic structure of twisted bilayer MoS2 superlattice based microfabricated device structures to correlate with their magneto-transport properties and understand the interlayer interaction, influence of local strain and twist angles on their performance.