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Toroidal polar topology in strained ferroelectric polymer

Journal Article · · Science
 [1];  [2];  [1];  [3];  [1];  [1];  [4];  [5];  [1];  [1];  [1];  [1];  [3];  [2];  [6];  [7];  [1];  [1];  [1]
  1. Tsinghua Univ., Beijing (China)
  2. Beijing Inst. of Technology (China)
  3. Peking Univ., Beijing (China)
  4. Tsinghua Univ., Beijing (China); Argonne National Lab. (ANL), Lemont, IL (United States)
  5. Argonne National Lab. (ANL), Lemont, IL (United States)
  6. Pennsylvania State Univ., University Park, PA (United States)
  7. Univ. of Wollongong, NSW (Australia)
Polar topological texture has become an emerging research field for exotic phenomena and potential applications in reconfigurable electronic devices. Here, 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.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
Hamer Foundation; National Key Research & Development Program; National Key Research and Development Program of China; National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1774103
Journal Information:
Science, Journal Name: Science Journal Issue: 6533 Vol. 371; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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