Aberration-corrected and energy-filtered precession electron diffraction

Alexander S. Eggeman, Jonathan S. Barnard, Paul A. Midgley

    Research output: Contribution to journalArticlepeer-review


    We report initial findings on improvements to precession electron diffraction (PED) achieved through aberration correction of the probe-forming lens and by energy-filtering. Using current-generation aberration correctors, we show that PED patterns can, in principle, be acquired with sub-nm spatial resolution. We present initial experimental results that illustrate aberration-corrected PED of nanostructured alloys. We show also that zero loss energy filtering minimizes the inelastic background in a PED pattern, important for weak reflections, and leads to an improvement in the refinement of a crystal structure using elastic-only intensities.

    Original languageEnglish
    Pages (from-to)43-50
    Number of pages8
    JournalZeitschrift fur Kristallographie
    Issue number1
    Publication statusPublished - Jan 2013


    • Aberration correction
    • Electron crystallography
    • Precession electron diffraction


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