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@ARTICLE{Wei:873066,
      author       = {Wei, Xian‐Kui and Jia, Chun-Lin and Du, Hongchu and
                      Roleder, Krystian and Mayer, Joachim and Dunin-Borkowski,
                      Rafal},
      title        = {{A}n {U}nconventional {T}ransient {P}hase with {C}ycloidal
                      {O}rder of {P}olarization in {E}nergy‐{S}torage
                      {A}ntiferroelectric {P}b{Z}r{O} 3},
      journal      = {Advanced materials},
      volume       = {32},
      number       = {9},
      issn         = {1521-4095},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2020-00515},
      pages        = {1907208 -},
      year         = {2020},
      abstract     = {Antiferroelectric‐based dielectric capacitors are
                      receiving tremendous attention for their outstanding
                      energy‐storage performance and extraordinary flexibility
                      in collecting pulsed powers. Nevertheless, the in situ
                      atomic‐scale structural‐evolution pathway, inherently
                      coupling to the energy storage process, has not been
                      elucidated for the ultimate mechanistic understanding so
                      far. Here, time‐ and atomic‐resolution structural phase
                      evolution in antiferroelectric PbZrO3 during storage of
                      energy from the electron‐beam illumination is reported. By
                      employing state‐of‐the‐art
                      negative‐spherical‐aberration imaging technique, the
                      quantitative transmission electron microscopy study
                      presented herein clarifies that the hierarchical evolution
                      of polar oxygen octahedra associated with the unit‐cell
                      volume change and polarization rotation accounts for the
                      stepwise antiferroelectric‐to‐ferroelectric phase
                      transition. In particular, an unconventional ferroelectric
                      category—the ferrodistortive phase characteristic of a
                      unique cycloidal polarization order—is established during
                      the dynamic structure investigation. Through clarifying the
                      atomic‐scale phase transformation pathway, findings of
                      this work unveil a new territory to explore novel
                      ferrodistortive phases in energy‐storage materials with
                      the nonpolar‐to‐polar phase transitions.},
      cin          = {ER-C-2 / ER-C-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)ER-C-2-20170209 / I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31975474},
      UT           = {WOS:000508922400001},
      doi          = {10.1002/adma.201907208},
      url          = {https://juser.fz-juelich.de/record/873066},
}