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    Self-healing of fractured one dimensional brittle nanostructures

    185263_58262_GaAs_EPL_manu.pdf (2.078Mb)
    Access Status
    Open access
    Authors
    Wang, Jun
    Lu, Chungsheng
    Wang, Q.
    Xiao, P.
    Ke, F.
    Bai, Y.
    Shen, Y.
    Wang, Y.
    Liao, X.
    Gao, H.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wang, J. and Lu, C. and Wang, Q. and Xiao, P. and Ke, F.J. and Bai, Y.L. and Shen, Y.G. and Wang, Y.B. and Liao, X.Z. and Gao, H.J. 2012. Self-healing of fractured one-dimensional brittle nanostructures. Europhysics Letters. 98 (1): pp. 16010-16010.
    Source Title
    europhysics letters
    DOI
    10.1209/0295-5075/98/16010
    ISSN
    02955075
    School
    Department of Mechanical Engineering
    Remarks

    Copyright © 2012 IOP Institute of Physics. This is an author-created, un-copyedited version of an article accepted for publication in IOP Science. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher-authenticated version is available online at http://dx.doi.org/10.1209/0295-5075/98/16010.

    URI
    http://hdl.handle.net/20.500.11937/30456
    Collection
    • Curtin Research Publications
    Abstract

    Recent experiments have shown that fractured GaAs nanowires can heal spontaneously inside a transmission electron microscope. Here we perform molecular-dynamics simulations to investigate the atomic mechanism of this self-healing process. As the distance between two fracture surfaces becomes less than 1.0 nm, a strong surface attraction is generated by the electrostatic interaction, which results in Ga–As re-bonding at the fracture site and restoration of the nanowire. The results suggest that self-healing might be prevalent in ultrathin one-dimensional nanostructures under near vacuum conditions.

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