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@ARTICLE{OzsoyKeskinbora:827068,
      author       = {Ozsoy - Keskinbora, C. and Boothroyd, Christopher Brian and
                      Dunin-Borkowski, Rafal and van Aken, P. A. and Koch, C. T.},
      title        = {{M}apping the electrostatic potential of {A}u nanoparticles
                      using hybrid electron holography},
      journal      = {Ultramicroscopy},
      volume       = {165},
      issn         = {0304-3991},
      address      = {Amsterdam},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-01274},
      pages        = {8 - 14},
      year         = {2016},
      abstract     = {Electron holography is a powerful technique for
                      characterizing electrostatic potentials, charge
                      distributions, electric and magnetic fields, strain
                      distributions and semiconductor dopant distributions with
                      sub-nm spatial resolution. Mapping internal electrostatic
                      and magnetic fields within nanoparticles and other
                      low-dimensional materials by TEM requires both high spatial
                      resolution and high phase sensitivity. Carrying out such an
                      analysis fully quantitatively is even more challenging,
                      since artefacts such as dynamical electron scattering may
                      strongly affect the measurement. In-line electron
                      holography, one of the variants of electron holography,
                      features high phase sensitivity at high spatial frequencies,
                      but suffers from inefficient phase recovery at low spatial
                      frequencies. Off-axis electron holography, in contrast, can
                      recover low spatial frequency phase information much more
                      reliably, but is less effective in retrieving phase
                      information at high spatial frequencies when compared to
                      in-line holography. We investigate gold nanoparticles using
                      hybrid electron holography at both atomic-resolution and
                      intermediate magnification. Hybrid electron holography is a
                      novel technique that synergistically combines off-axis and
                      in-line electron holography, allowing the measurement of the
                      complex wave function describing the scattered electrons
                      with excellent signal-to-noise properties at both high and
                      low spatial frequencies. The effect of dynamical electron
                      scattering is minimized by beam tilt averaging.},
      cin          = {PGI-5 / ER-C-1},
      ddc          = {570},
      cid          = {I:(DE-Juel1)PGI-5-20110106 / I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000375946200002},
      doi          = {10.1016/j.ultramic.2016.03.007},
      url          = {https://juser.fz-juelich.de/record/827068},
}