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@ARTICLE{Meyer:45609,
      author       = {Meyer, R. and Liedtke, R. and Waser, R.},
      title        = {{O}xygen vacancy migration and time-dependent leakage
                      current behavior of {B}a0.3{S}r0.7{T}i{O}3 thin films},
      journal      = {Applied physics letters},
      volume       = {86},
      issn         = {0003-6951},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {PreJuSER-45609},
      pages        = {112904},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The leakage current response of high-permittivity
                      columnar-grown (Ba,Sr)TiO3 thin films has been studied at
                      elevated temperatures under dc load. We observe a thermally
                      activated current prior to the onset of the resistance
                      degradation with an activation energy of E-A=1.1 eV. A point
                      defect model is applied to calculate the migration of
                      electronic and ionic defects under the dc field as well as
                      the current response of the system. We find that the peak in
                      current is not caused by a space-charge-limited transient of
                      oxygen vacancies, but related to a modulation of the
                      electronic conductivity upon oxygen vacancy redistribution.
                      Furthermore, we show that after the redistribution of
                      electronic and ionic defects, no further increase in
                      conductivity takes place in the simulation. (C) 2005
                      American Institute of Physics.},
      keywords     = {J (WoSType)},
      cin          = {IFF-IEM / CNI},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB321 / I:(DE-Juel1)VDB381},
      pnm          = {Materialien, Prozesse und Bauelemente für die Mikro- und
                      Nanoelektronik},
      pid          = {G:(DE-Juel1)FUEK252},
      shelfmark    = {Physics, Applied},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000228050700074},
      doi          = {10.1063/1.1874313},
      url          = {https://juser.fz-juelich.de/record/45609},
}