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@ARTICLE{Ran:1009338,
      author       = {Ran, Ke and Barthel, Juri and Jin, Lei and Daesung and
                      Buchheit, Annika and Neuhaus, Kerstin and Baumann, Stefan
                      and Meulenberg, Wilhelm Albert and Mayer, Joachim},
      title        = {{D}irect {V}isualization of {D}istorted {T}win {B}oundaries
                      in {C}e-{D}oped {G}d{F}e{O}3},
      journal      = {Nano letters},
      volume       = {23},
      number       = {7},
      issn         = {1530-6984},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2023-02767},
      pages        = {2945-2951},
      year         = {2023},
      abstract     = {Utilizing advanced transmission electron microscopy (TEM),
                      the structure at the (110)-type twin boundary (TB) of
                      Ce-doped GdFeO3 (C-GFO) has been investigated with picometer
                      precision. Such a TB is promising to generate local
                      ferroelectricity within a paraelectric system, while precise
                      knowledge about its structure is still largely missing. In
                      this work, a direct measurement of the cation off-centering
                      with respect to the neighboring oxygen is enabled by
                      integrated differential phase contrast (iDPC) imaging, and
                      up to 30 pm Gd off-centering is highly localized at the TB.
                      Further electron energy loss spectroscopy (EELS) analysis
                      demonstrates a slight accumulation of oxygen vacancies at
                      the TB, a self-balanced behavior of Ce at the Gd sites, and
                      a mixed occupation of Fe2+ and Fe3+ at the Fe sites. Our
                      results provide an informative picture with atomic details
                      at the TB of C-GFO, which is indispensable to further push
                      the potential of grain boundary engineering.},
      cin          = {IEK-1 / IEK-12 / ER-C-2 / ER-C-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-12-20141217 /
                      I:(DE-Juel1)ER-C-2-20170209 / I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {1232 - Power-based Fuels and Chemicals (POF4-123) / 5351 -
                      Platform for Correlative, In Situ and Operando
                      Characterization (POF4-535) / 5353 - Understanding the
                      Structural and Functional Behavior of Solid State Systems
                      (POF4-535) / DFG project 387282673 - Die Rolle von
                      Grenzflächen in mehrphasigen Ceroxid-basierten Membranen
                      für den Einsatz in Membranreaktoren (387282673)},
      pid          = {G:(DE-HGF)POF4-1232 / G:(DE-HGF)POF4-5351 /
                      G:(DE-HGF)POF4-5353 / G:(GEPRIS)387282673},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36972518},
      UT           = {WOS:000958097500001},
      doi          = {10.1021/acs.nanolett.3c00318},
      url          = {https://juser.fz-juelich.de/record/1009338},
}