Exploring the effects of twist and strain in moiré superlattices

Two-dimensional (2D) materials like graphene and transition metal dichalcogenides have unique properties due to their atomic thinness, making them promising candidates for advanced electronics. My research explores how stacking these materials with different twists and mismatches creates new physics that is not available in the individual layers. By using angle-resolved photoemission spectroscopy and piezoresponse force microscopy techniques, I studied twisted bilayer tungsten diselenide and graphene on black phosphorus. I found that changing the twist angle can tune electronic properties, potentially enabling new quantum effects and lossless charge transport. This work offers insights for designing future nano-devices and technologies.