4.8 Article

Ferroelectric Switching Dynamics of Topological Vortex Domains in a Hexagonal Manganite

Journal

ADVANCED MATERIALS
Volume 25, Issue 17, Pages 2415-2421

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201204766

Keywords

ferroelectrics; topological defects; domain wall; in situ TEM; domain switching

Funding

  1. U.S. Department of Energy, Office of Basic Energy Sciences
  2. U.S. Department of Energy's Office of Basic Energy Science, Division of Materials Science and Engineering [DE-AC02-98CH10886]
  3. National Science Foundation [DMR-11004484]
  4. Division Of Materials Research
  5. Direct For Mathematical & Physical Scien [1104484] Funding Source: National Science Foundation

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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.

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