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@ARTICLE{Rodenbcher:837176,
      author       = {Rodenbücher, Christian and Meuffels, Paul and Speier,
                      Wolfgang and Ermrich, Martin and Wrana, Dominik and Krok,
                      Franciszek and Szot, Kristof},
      title        = {{S}tability and {D}ecomposition of {P}erovskite-{T}ype
                      {T}itanates upon {H}igh-{T}emperature {R}eduction},
      journal      = {Physica status solidi / Rapid research letters},
      volume       = {11},
      number       = {9},
      issn         = {1862-6254},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2017-06155},
      pages        = {1700222 -},
      year         = {2017},
      abstract     = {Controlling the properties of the surface region of ternary
                      perovskite-type titanates is of high importance in the field
                      of future energy and information technologies. A common
                      method to modify the surface of perovskite oxides such as
                      SrTiO3 is annealing under vacuum conditions. Here we show
                      that the local oxygen partial pressure near to the surface
                      plays a crucial role during annealing. While the oxide is
                      found to be macroscopically stable during high-temperature
                      reduction under standard vacuum conditions and only
                      segregation effects on the nanoscale seem to take place,
                      surface decomposition due to incongruent sublimation occurs
                      as soon as an oxygen getter such as Ti is positioned close
                      to the oxide. In consequence, owing to the high volatility
                      of Sr-containing species at very low oxygen pressures, a
                      Sr-depleted TiOx surface layer is formed. This effect might
                      reveal an alternative possibility to tailor composition and
                      structure of perovskite-type titanate surfaces.},
      cin          = {PGI-7},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-7-20110106},
      pnm          = {521 - Controlling Electron Charge-Based Phenomena
                      (POF3-521)},
      pid          = {G:(DE-HGF)POF3-521},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000410132200009},
      doi          = {10.1002/pssr.201700222},
      url          = {https://juser.fz-juelich.de/record/837176},
}