Ferroelectric switching at symmetry-broken interfaces by local control of dislocation networks

Moiré Potential, Lattice Relaxation, and Layer Polarization in Marginally Twisted MoS2 Bilayers

“…While many STM experiments , previously studied ferroelectric 2D materials with in-plane polarization, to the best of our knowledge this is the first work to see signatures of vertical polarization, albeit indirectly. A recent work on marginally twisted WS 2 has shown that these domain walls can be manipulated using the tip–sample vertical electric field at room temperature. However, our efforts to manipulate the domains with a vertical displacement field applied using the backgate were unsuccessful, as discussed in the Supporting Information.…”