Polar antivortices are fundamental topological defects in ferroelectric polarization fields, yet their deterministic formation and manipulation remain largely unexplored. Here, using phase-field simulations, we demonstrate chirality-mediated programming of polar textures in ${\mathrm{PbTiO}}_3/{\mathrm{SrTiO}}_3$ (PTO/STO) ferroelectric-dielectric nanostripes. Ferroelectric vortices are stabilized in PTO nanostripes, while diverse polar textures, including two topologically nontrivial antivortex states and two topologically trivial configurations, emerge in STO through epitaxial strain and interfacial polarization coupling. Although the two antivortex states possess identical winding topology, their distinct polarization geometries enable unambiguous identification through complementary topological and angular analyses. We reveal that STO polar textures are deterministically governed by the chirality arrangement of neighboring PTO vortices, establishing a direct link between parent vortex chirality and emergent polar configurations. Temperature, electrostatic screening, and epitaxial strain are systematically explored to construct phase diagrams of texture stability and switching. A scanning Gaussian electric field enables active manipulation of PTO vortex chirality and programmable transformation among STO polar states. These findings establish a strategy for chirality-mediated programming of ferroelectric topological textures and provide opportunities for designing electrically reconfigurable topological polar states in oxide heterostructures.

Close

PrevNext

View figure in article

• Ferroelectric domains
• Ferroelectrics
• Phase-field modeling