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@ARTICLE{Koettgen:885475,
      author       = {Koettgen, Julius and Dück, Gerald and Martin, Manfred},
      title        = {{T}he oxygen ion conductivity of {L}u doped ceria},
      journal      = {Journal of physics / Condensed matter},
      volume       = {32},
      number       = {26},
      issn         = {1361-648X},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2020-03858},
      pages        = {265402 -},
      year         = {2020},
      abstract     = {The oxygen ion conductivity of polycrystalline samples of
                      Lu doped ceria is studied using impedance spectroscopy.
                      Lutetium doped ceria is of particular interest as Lu has a
                      similar ionic radius as the host cation Ce. The change of
                      the ionic conductivity as a function of the Lu dopant
                      fraction is investigated in detail revealing a similar
                      behavior as Sm doped ceria that has one of the highest ionic
                      conductivity in ternary cerium oxides. In comparison with
                      simulations, the experimental dependence of the conductivity
                      on the dopant fraction reveals that migration barriers for
                      oxygen vacancy jumps around Lu ions are slightly higher than
                      for jumps in pure ceria. The absolute conductivity is small
                      due to the strong trapping of oxygen vacancies near Lu
                      dopants.},
      ddc          = {530},
      pnm          = {Ab-initio study of structure, conductivity and
                      thermodynamics of doped and non-stoichiometric ceria
                      $(jara0035_20141101)$},
      pid          = {$G:(DE-Juel1)jara0035_20141101$},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1088/1361-648X/ab7d64},
      url          = {https://juser.fz-juelich.de/record/885475},
}