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@ARTICLE{Shirpour:201772,
      author       = {Shirpour, M. and Gregori, G. and Houben, L. and Merkle, R.
                      and Maier, J.},
      title        = {{H}igh spatially resolved cation concentration profile at
                      the grain boundaries of {S}c-doped {B}a{Z}r{O}$_{3}$},
      journal      = {Solid state ionics},
      volume       = {262},
      issn         = {0167-2738},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2015-04066},
      pages        = {860 - 864},
      year         = {2014},
      abstract     = {Recent studies have demonstrated that a higher dopant
                      concentration in the grain boundary region (which includes
                      boundary core and neighboring layers) of acceptor-doped
                      oxides results in a remarkable decrease of grain boundary
                      electrical resistance. In the present work, the spatial
                      distribution of cations in the proton conducting scandium
                      doped barium zirconate is investigated by transmission
                      electron microscopy with high lateral resolution. Cation
                      profiles with a resolution of 0.5 nm obtained using electron
                      energy-loss spectroscopy indicate segregation of a
                      noticeable part of scandium into the grain boundary core.
                      This direct observation is consistent with the measured
                      grain boundary electrical behavior and is interpreted in
                      terms of the space charge model.},
      cin          = {PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {42G - Peter Grünberg-Centre (PG-C) (POF2-42G41)},
      pid          = {G:(DE-HGF)POF2-42G41},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000338810500187},
      doi          = {10.1016/j.ssi.2013.11.032},
      url          = {https://juser.fz-juelich.de/record/201772},
}