% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Zhukov:151786,
      author       = {Zhukov, Sergey and Kungl, Hans and Genenko, Yuri A. and von
                      Seggern, Heinz},
      title        = {{S}tatistical electric field and switching time
                      distributions in {PZT} 1{N}b2{S}r ceramics: {C}rystal- and
                      microstructure effects},
      journal      = {Journal of applied physics},
      volume       = {115},
      issn         = {1089-7550},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2014-01668},
      pages        = {014103},
      year         = {2014},
      abstract     = {Dispersive polarization response of ferroelectric PZT
                      ceramics is analyzed assuming theinhomogeneous field
                      mechanism of polarization switching. In terms of this model,
                      the localpolarization switching proceeds according to the
                      Kolmogorov-Avrami-Ishibashi scenario with theswitching time
                      determined by the local electric field. As a result, the
                      total polarization reversal isdominated by the statistical
                      distribution of the local field magnitudes. Microscopic
                      parameters of thismodel (the high-field switching time and
                      the activation field) as well as the statistical field
                      andconsequent switching time distributions due to disorder
                      at a mesoscopic scale can be directlydetermined from a set
                      of experiments measuring the time dependence of the total
                      polarizationswitching, when applying electric fields of
                      different magnitudes. PZT 1Nb2Sr ceramics with Zr/Tiratios
                      51.5/48.5, 52.25/47.75, and 60/40 with four different grain
                      sizes each were analyzed followingthis approach. Pronounced
                      differences of field and switching time distributions were
                      founddepending on the Zr/Ti ratios. Varying grain size also
                      affects polarization reversal parameters, but inanother way.
                      The field distributions remain almost constant with grain
                      size whereas switching timesand activation field tend to
                      decrease with increasing grain size. The quantitative
                      changes of the latterparameters with grain size are very
                      different depending on composition. The origin of the
                      effects onthe field and switching time distributions are
                      related to differences in structural and
                      microstructuralcharacteristics of the materials and are
                      discussed with respect to the hysteresis loops observed
                      underbipolar electrical cycling.},
      cin          = {IEK-9},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {152 - Renewable Energies (POF2-152) / 123 - Fuel Cells
                      (POF2-123)},
      pid          = {G:(DE-HGF)POF2-152 / G:(DE-HGF)POF2-123},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000329456300044},
      doi          = {10.1063/1.4860335},
      url          = {https://juser.fz-juelich.de/record/151786},
}