Ferroelectrics at the nanoscale on silicon: topological polar textures
In recent years, new exotic polar textures featuring curled polarization patterns (vortices, skyrmions, etc…) have been unraveled in ferroelectric ultrathin films, superlattices or nanostructures. Understanding and controlling topological polar textures open up exciting possibilities for advanced applications in memories, logic devices or sensors. So far, all polar textures have been realized on oxide substrates (such as SrTiO3 or scandates), which limits their applicability. In this talk, I will present the stabilization of topological polar states in BaTiO3-based materials epitaxially grown on silicon. I will also briefly discuss our work on ferroelectric devices for neuromorphic computing applications.
(Background image taken from this URL, © Laura Canil/HZB)
