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@ARTICLE{Beleggia:819513,
      author       = {Beleggia, M. and Gontard, L. C. and Dunin-Borkowski, Rafal},
      title        = {{L}ocal charge measurement using off-axis electron
                      holography},
      journal      = {Journal of physics / D},
      volume       = {49},
      number       = {29},
      issn         = {1361-6463},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2016-05156},
      pages        = {294003},
      year         = {2016},
      abstract     = {A model-independent approach based on Gauss' theorem for
                      measuring the local charge in a specimen from an
                      electron-optical phase image recorded using off-axis
                      electron holography was recently proposed. Here, we show
                      that such a charge measurement is reliable when it is
                      applied to determine the total charge enclosed within an
                      object. However, the situation is more complicated for a
                      partial charge measurement when the integration domain
                      encloses only part of the object. We analyze in detail the
                      effects on charge measurement of the mean inner potential of
                      the object, of the presence of induced charges on nearby
                      supports/electrodes and of noise. We perform calculations
                      for spherical particles and highlight the differences when
                      dealing with other object shapes. Our analysis is tested
                      using numerical simulations and applied to the
                      interpretation of an experimental dataset recorded from a
                      sapphire particle.},
      cin          = {PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000383894900005},
      doi          = {10.1088/0022-3727/49/29/294003},
      url          = {https://juser.fz-juelich.de/record/819513},
}