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Atom-resolved imaging of ordered defect superstructures at individual grain boundaries

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  • Zhongchang Wang

    (World Premier International Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan)

  • Mitsuhiro Saito

    (World Premier International Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan)

  • Keith P. McKenna

    (World Premier International Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
    University College London, Gower Street, London WC1E 6BT, UK)

  • Lin Gu

    (World Premier International Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan)

  • Susumu Tsukimoto

    (World Premier International Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan)

  • Alexander L. Shluger

    (World Premier International Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
    University College London, Gower Street, London WC1E 6BT, UK)

  • Yuichi Ikuhara

    (World Premier International Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
    Institute of Engineering Innovation, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
    Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta, Nagoya 456-8587, Japan)

Abstract

Crystal boundaries at atomic resolution Using a combination of advanced electron microscopy, spectroscopic techniques and theoretical calculations, Wang et al. obtain atomically resolved images of the defects at the grain boundary regions of magnesium oxide crystals. This level of accuracy is essential for linking the behaviour of grain boundaries with the macroscopic properties of materials. In the relatively simple case of magnesium oxide, the authors find that grain boundaries accommodate ordered defect superstructures that act as electron trapping regions, with consequences for the electronic properties of the material.

Suggested Citation

  • Zhongchang Wang & Mitsuhiro Saito & Keith P. McKenna & Lin Gu & Susumu Tsukimoto & Alexander L. Shluger & Yuichi Ikuhara, 2011. "Atom-resolved imaging of ordered defect superstructures at individual grain boundaries," Nature, Nature, vol. 479(7373), pages 380-383, November.
    • Handle: RePEc:nat:nature:v:479:y:2011:i:7373:d:10.1038_nature10593
    DOI: 10.1038/nature10593
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    Cited by:

    1. Xuyang Zhou & Ali Ahmadian & Baptiste Gault & Colin Ophus & Christian H. Liebscher & Gerhard Dehm & Dierk Raabe, 2023. "Atomic motifs govern the decoration of grain boundaries by interstitial solutes," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. A. Ahmadian & D. Scheiber & X. Zhou & B. Gault & C. H. Liebscher & L. Romaner & G. Dehm, 2021. "Aluminum depletion induced by co-segregation of carbon and boron in a bcc-iron grain boundary," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    3. Giovanni Liberto & Ángel Morales-García & Stefan T. Bromley, 2022. "An unconstrained approach to systematic structural and energetic screening of materials interfaces," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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