Journal article

Elemental mapping in achromatic atomic-resolution energy-filtered transmission electron microscopy

BD Forbes, L Houben, J Mayer, RE Dunin-Borkowski, LJ Allen

Ultramicroscopy | ELSEVIER SCIENCE BV | Published : 2014

Abstract

We present atomic-resolution energy-filtered transmission electron microscopy (EFTEM) images obtained with the chromatic-aberration-corrected FEI Titan PICO at the Ernst-Ruska Centre, Jülich, Germany. We find qualitative agreement between experiment and simulation for the background-subtracted EFTEM images of the Ti-L2,3 and O-K edges for a specimen of SrTiO3 oriented down the [110] zone axis. The simulations utilize the transition potential formulation for inelastic scattering, which permits a detailed investigation of contributions to the EFTEM image. We find that energy-filtered images of the Ti-L2,3 and O-K edges are lattice images and that the background-subtracted core-loss maps may no..

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University of Melbourne Researchers