Controllable meron/ antimeron polar vortex states inside twisted bilayer tungsten diselenide 2D semiconductor moiré lattices

https://phys.org/news/2026-09-tiny-whirlpools-discovered-in-atom-thin-semiconductor.html

"previously restricted to significantly thicker oxide materials, but now generated stacking 2 single-atom-thin sheets/ applying tiny 0.1-degree twist... distinct structural contributions of material twist versus mechanical strain... pathway toward controlling nanoscale electrical states via electric fields or strain engineering, laying the foundation for ultra-low-energy topological electronics and next-generation computing hardware"