Dynamics of annular bright field imaging in scanning transmission electron microscopy

S. D. Findlay, N. Shibata, H. Sawada, E. Okunishi, Y. Kondo, Y. Ikuhara

    Research output: Contribution to journalArticlepeer-review

    277 Citations (Scopus)

    Abstract

    We explore the dynamics of image formation in the so-called annular bright field mode in scanning transmission electron microscopy, whereby an annular detector is used with detector collection range lying within the cone of illumination, i.e. the bright field region. We show that this imaging mode allows us to reliably image both light and heavy columns over a range of thickness and defocus values, and we explain the contrast mechanisms involved. The role of probe and detector aperture sizes is considered, as is the sensitivity of the method to intercolumn spacing and local disorder.

    Original languageEnglish
    Pages (from-to)903-923
    Number of pages21
    JournalUltramicroscopy
    Volume110
    Issue number7
    DOIs
    Publication statusPublished - 2010 Jun

    Keywords

    • Annular bright field (ABF)
    • High angle annular dark field (HAADF)
    • Scanning transmission electron microscopy (STEM)

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics
    • Instrumentation

    Fingerprint Dive into the research topics of 'Dynamics of annular bright field imaging in scanning transmission electron microscopy'. Together they form a unique fingerprint.

    Cite this