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@ARTICLE{Guo:44540,
      author       = {Guo, X. and Mi, S. and Waser, R.},
      title        = {{N}onlinear electrical properties of grain boundaries in
                      oxygen ion conductors: case of acceptor doped ceria},
      journal      = {Electrochemical and solid-state letters},
      volume       = {8},
      issn         = {1099-0062},
      address      = {Pennington, NJ},
      publisher    = {Soc.},
      reportid     = {PreJuSER-44540},
      pages        = {J1 - J3},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Owing to the positively charged grain boundary cores in
                      acceptor-doped ZrO2 and CeO2, oxygen vacancies are depleted
                      in the space charge layers. The validity of this space
                      charge concept was checked for Y2O3-doped CeO2 ceramic of
                      high purity. Electrical fields up to 2 x 10(5) V cm(-1) were
                      applied to the grain boundaries of 1.0 mol $\%$ Y2O3-doped
                      CeO2 at 400 degrees C in air, and the grain boundary
                      properties were separated by means of impedance
                      spectroscopy. It was discovered that the current-voltage
                      relation for individual grain boundary was nonlinear, and
                      that the effective grain boundary thickness increased with
                      increasing bias, which supports the space charge concept.
                      (C) 2004 The Electrochemical Society.},
      keywords     = {J (WoSType)},
      cin          = {IFF-IEM / IFF-IMF},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB321 / I:(DE-Juel1)VDB37},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK242},
      shelfmark    = {Electrochemistry / Materials Science, Multidisciplinary},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000228356800046},
      doi          = {10.1149/1.1830393},
      url          = {https://juser.fz-juelich.de/record/44540},
}