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@ARTICLE{Wei:889794,
      author       = {Wei, Xiankui and Jia, Chun-Lin and Roleder, Krystian and
                      Dunin-Borkowski, Rafal and Mayer, Joachim},
      title        = {{I}n {S}itu {O}bservation of {P}oint‐{D}efect‐{I}nduced
                      {U}nit‐{C}ell‐{W}ise {E}nergy {S}torage {P}athway in
                      {A}ntiferroelectric {P}b{Z}r{O} 3},
      journal      = {Advanced functional materials},
      volume       = {31},
      number       = {13},
      issn         = {1616-3028},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2021-00407},
      pages        = {2008609 -},
      year         = {2021},
      abstract     = {Phase transition is established to govern electrostatic
                      energy storage for antiferroelectric (AFE)‐type dielectric
                      capacitors. However, the source of inducing the phase
                      transition and the pathway of storing the energy remains
                      elusive so far given the ultrafast charging/discharging
                      process under normal working conditions. Here, by slowing
                      down the phase‐transition speed using electron‐beam
                      irradiation as an external stimulus, the in situ dynamic
                      energy‐storage process in AFE PbZrO3 is captured by using
                      atomic‐resolution transmission electron microscopy.
                      Specifically, it is found that
                      oxygen‐lead‐vacancy‐induced defect core acts as a seed
                      to initiate the antiferrodistortive‐to‐ferrodistortive
                      transition in antiparallel‐Pb‐based structural frames.
                      Associated with polarity evolution of the compressively
                      strained defect core, the ferroelectric
                      (FE)–ferrodistortive state expands bilaterally along the
                      b‐axis direction and then develops into charged domain
                      configurations during the energy‐storage process, which is
                      further evidenced by observations at the ordinary FE states.
                      With filling the gap of perception, the findings here
                      provide a straightforward approach of unveiling the
                      unit‐cell‐wise energy storage pathway in chemical
                      defect‐engineered dielectric ceramics.},
      cin          = {ER-C-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {535 - Materials Information Discovery (POF4-535) / DFG
                      project 390534769 - EXC 2004: Materie und Licht für
                      Quanteninformation (ML4Q) (390534769)},
      pid          = {G:(DE-HGF)POF4-535 / G:(GEPRIS)390534769},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000607540600001},
      doi          = {10.1002/adfm.202008609},
      url          = {https://juser.fz-juelich.de/record/889794},
}