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Keywords:

  • ferroelectrics;
  • topological defects;
  • domain wall;
  • in situ TEM;
  • domain switching
Thumbnail image of graphical abstract

Field-induced switching of ferroelectric domains with a topological vortex configuration is studied by atomic imaging and electrical biasing in an electron microscope, revealing the role of topological defects on the topologically-guided change of domain-wall pairs in a hexagonal manganite.