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Phys Rev Lett 110 (2013) 185507

Achromatic elemental mapping beyond the nanoscale in the transmission electron microscope

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Knut W Urban, Joachim Mayer, Jörg R Jinschek, Melissa J Neish, Nathan R Lugg, and Les J Allen

Newly developed achromatic electron optics allows the use of wide energy windows and makes feasible energy-filtered transmission electron microscopy (EFTEM) at atomic resolution. In the present studay EFTEM images formed using electrons that have undergone a silicon L_{2,3} core-shell energy loss, exhibiting a resolution in EFTEM of 1.35 Å. This permits elemental mapping beyond the nanoscale provided that quantum mechanical calculations from first principles are done in tandem with the experiment to understand the physical information encoded in the images.

Further reading:

Knut W Urban, Joachim Mayer, Jörg R Jinschek, Melissa J Neish, Nathan R Lugg, and Les J Allen: Achromatic elemental mapping beyond the nanoscale in the transmission electron microscope, Phys Rev Lett 110 (2013) 185507.

   
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