Electron Holography: Applications to Materials Questions

DOI Web Site 9 Citations
  • Hannes Lichte
    Triebenberg Laboratory, Institute of Structure Physics, Technische Universitaet, D 01062 Dresden, Germany;
  • Petr Formanek
    Triebenberg Laboratory, Institute of Structure Physics, Technische Universitaet, D 01062 Dresden, Germany;
  • Andreas Lenk
    Triebenberg Laboratory, Institute of Structure Physics, Technische Universitaet, D 01062 Dresden, Germany;
  • Martin Linck
    Triebenberg Laboratory, Institute of Structure Physics, Technische Universitaet, D 01062 Dresden, Germany;
  • Christopher Matzeck
    Triebenberg Laboratory, Institute of Structure Physics, Technische Universitaet, D 01062 Dresden, Germany;
  • Michael Lehmann
    Institute for Optics and Atom Physics, Technische Universitaet, D 10623 Berlin, Germany
  • Paul Simon
    Max-Planck Institute for the Chemical Physics of Solids, D 01187 Dresden, Germany

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<jats:p> Impressive progress has been made in the processing and exploration of new material on an atomic scale (nanomaterials). However, the characterization of such materials by the usual transmission electron microscopy (TEM) techniques suffers from the drawback that the phase of the object-modulated electron wave is virtually lost in the recorded intensity images. Electron holography has opened possibilities for analyzing both the amplitude and phase of the electron wave, hence giving access to the object information encoded in the phase. Examples include intrinsic electric and magnetic fields, e.g. in ferroelectrics or ferromagnetics, which substantially determine the object properties and therefore are indispensable for a complete understanding of structure-properties relations. </jats:p>

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