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Toroidal polar topology in strained ferroelectric polymer

Journal Article


Abstract


  • Polar topological texture has become an emerging research field for exotic phenomena and potential applications in reconfigurable electronic devices. We report toroidal topological texture self-organized in a ferroelectric polymer, poly(vinylidene fluoride-ran-trifluoroethylene) [P(VDF-TrFE)], that exhibits concentric topology with anticoupled chiral domains. The interplay among the elastic, electric, and gradient energies results in continuous rotation and toroidal assembly of the polarization perpendicular to polymer chains, whereas relaxor behavior is induced along polymer chains. Such toroidal polar topology gives rise to periodic absorption of polarized far-infrared (FIR) waves, enabling the manipulation of the terahertz wave on a mesoscopic scale. Our observations should inform design principles for flexible ferroic materials toward complex topologies and provide opportunities for multistimuli conversions in flexible electronics.

Publication Date


  • 2021

Citation


  • Guo, M., Guo, C., Han, J., Chen, S., He, S., Tang, T., . . . Shen, Y. (2021). Toroidal polar topology in strained ferroelectric polymer. Science, 371(6533), 1050-1056. doi:10.1126/science.abc4727

Scopus Eid


  • 2-s2.0-85102201955

Start Page


  • 1050

End Page


  • 1056

Volume


  • 371

Issue


  • 6533

Place Of Publication


Abstract


  • Polar topological texture has become an emerging research field for exotic phenomena and potential applications in reconfigurable electronic devices. We report toroidal topological texture self-organized in a ferroelectric polymer, poly(vinylidene fluoride-ran-trifluoroethylene) [P(VDF-TrFE)], that exhibits concentric topology with anticoupled chiral domains. The interplay among the elastic, electric, and gradient energies results in continuous rotation and toroidal assembly of the polarization perpendicular to polymer chains, whereas relaxor behavior is induced along polymer chains. Such toroidal polar topology gives rise to periodic absorption of polarized far-infrared (FIR) waves, enabling the manipulation of the terahertz wave on a mesoscopic scale. Our observations should inform design principles for flexible ferroic materials toward complex topologies and provide opportunities for multistimuli conversions in flexible electronics.

Publication Date


  • 2021

Citation


  • Guo, M., Guo, C., Han, J., Chen, S., He, S., Tang, T., . . . Shen, Y. (2021). Toroidal polar topology in strained ferroelectric polymer. Science, 371(6533), 1050-1056. doi:10.1126/science.abc4727

Scopus Eid


  • 2-s2.0-85102201955

Start Page


  • 1050

End Page


  • 1056

Volume


  • 371

Issue


  • 6533

Place Of Publication