% 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{Beleggia:189432,
      author       = {Beleggia, M. and Kasama, T. and Larson, D. J. and Kelly, T.
                      F. and Dunin-Borkowski, Rafal and Pozzi, G.},
      title        = {{T}owards quantitative off-axis electron holographic
                      mapping of the electric field around the tip of a sharp
                      biased metallic needle},
      journal      = {Journal of applied physics},
      volume       = {116},
      number       = {2},
      issn         = {1089-7550},
      address      = {Melville, NY},
      publisher    = {American Inst. of Physics},
      reportid     = {FZJ-2015-02599},
      pages        = {024305},
      year         = {2014},
      abstract     = {We apply off-axis electron holography and Lorentz
                      microscopy in the transmission electron microscope to map
                      the electric field generated by a sharp biased metallic tip.
                      A combination of experimental data and modelling provides
                      quantitative information about the potential and the field
                      around the tip. Close to the tip apex, we measure a maximum
                      field intensity of 82 MV/m, corresponding to a field k
                      factor of 2.5, in excellent agreement with theory. In order
                      to verify the validity of the measurements, we use the
                      inferred charge density distribution in the tip region to
                      generate simulated phase maps and Fresnel (out-of-focus)
                      images for comparison with experimental measurements. While
                      the overall agreement is excellent, the simulations also
                      highlight the presence of an unexpected astigmatic
                      contribution to the intensity in a highly defocused Fresnel
                      image, which is thought to result from the geometry of the
                      applied field.},
      cin          = {PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {42G - Peter Grünberg-Centre (PG-C) (POF2-42G41)},
      pid          = {G:(DE-HGF)POF2-42G41},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000340267600060},
      doi          = {10.1063/1.4887448},
      url          = {https://juser.fz-juelich.de/record/189432},
}