Deterministic Switching of Polarization Vortices in Compositionally Graded Ferroelectrics Using a Mechanical Field

Practical control of polarization vortices in ferroelectric nanostructures could plays an important role in next-generation nanoscale electronic devices. However, switching vortex polarization is quite challenging, never mind via mechanical methods. This study identifies deterministic switching of vortex chirality in a compositionally graded ferroelectric nanoplate under compressive stress, using phase-field simulations and ferroelectric...