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@ARTICLE{Krause:837851,
      author       = {Krause, F. F. and Rosenauer, A. and Barthel, Juri and
                      Mayer, Joachim and Urban, Knut and Dunin-Borkowski, Rafal
                      and Brown, H. G. and Forbes, B. D. and Allen, Leslie J.},
      title        = {{A}tomic resolution elemental mapping using energy-filtered
                      imaging scanning transmission electron microscopy with
                      chromatic aberration correction},
      journal      = {Ultramicroscopy},
      volume       = {181},
      issn         = {0304-3991},
      address      = {Amsterdam},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-06628},
      pages        = {173 - 177},
      year         = {2017},
      abstract     = {This paper addresses a novel approach to atomic resolution
                      elemental mapping, demonstrating a method that produces
                      elemental maps with a similar resolution to the established
                      method of electron energy-loss spectroscopy in scanning
                      transmission electron microscopy. Dubbed energy-filtered
                      imaging scanning transmission electron microscopy (EFISTEM)
                      this mode of imaging is, by the quantum mechanical principle
                      of reciprocity, equivalent to tilting the probe in
                      energy-filtered transmission electron microscopy (EFTEM)
                      through a cone and incoherently averaging the results. In
                      this paper we present a proof-of-principle EFISTEM
                      experimental study on strontium titanate. The present
                      approach, made possible by chromatic aberration correction,
                      has the advantage that it provides elemental maps which are
                      immune to spatial incoherence in the electron source,
                      coherent aberrations in the probe-forming lens and probe
                      jitter. The veracity of the experiment is supported by
                      quantum mechanical image simulations, which provide an
                      insight into the image-forming process. Elemental maps
                      obtained in EFTEM suffer from the effect known as
                      preservation of elastic contrast, which, for example, can
                      lead to a given atomic species appearing to be in atomic
                      columns where it is not to be found. EFISTEM very
                      substantially reduces the preservation of elastic contrast
                      and yields images which show stability of contrast with
                      changing thickness. The experimental application is
                      demonstrated in a proof-of-principle study on strontium
                      titanate.},
      cin          = {ER-C-1 / PGI-5},
      ddc          = {570},
      cid          = {I:(DE-Juel1)ER-C-1-20170209 / 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},
      pubmed       = {pmid:28601013},
      UT           = {WOS:000411170800021},
      doi          = {10.1016/j.ultramic.2017.06.004},
      url          = {https://juser.fz-juelich.de/record/837851},
}