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  • Long-range atomic order in irradiated Cu80Mn20

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    Author(s)
    Cussen, LD
    Gray, EM
    Murani, AP
    Kennedy, SJ
    Hunter, BA
    Griffith University Author(s)
    Gray, Evan M.
    Year published
    2002
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    Abstract
    Atomic short-range order is commonly observed in _CuMn alloys via a diffuse (1 �) peak in neutron diffraction patterns. There has been speculation for many years on the existence and nature of any corresponding long-range order. A sample of Cu80Mn20 has been irradiated in a high fast-neutron flux to produce a large number of crystal defects at around room temperature and thus facilitate the ordering process. Measurements of the diffuse neutron scattering from this sample demonstrate that long-range order has been induced in the sample, as evidenced by at least five Bragg peaks. This order is not seen in a reference sample ...
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    Atomic short-range order is commonly observed in _CuMn alloys via a diffuse (1 �) peak in neutron diffraction patterns. There has been speculation for many years on the existence and nature of any corresponding long-range order. A sample of Cu80Mn20 has been irradiated in a high fast-neutron flux to produce a large number of crystal defects at around room temperature and thus facilitate the ordering process. Measurements of the diffuse neutron scattering from this sample demonstrate that long-range order has been induced in the sample, as evidenced by at least five Bragg peaks. This order is not seen in a reference sample prepared in identical fashion except for the irradiation. The Cowley short-range order parameters for both samples are calculated and a candidate structure for the long-range order is proposed.
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    Journal Title
    Europhysics Letters
    Volume
    58
    Issue
    2
    Publisher URI
    https://iopscience.iop.org/article/10.1209/epl/i2002-00629-y
    DOI
    https://doi.org/10.1209/epl/i2002-00629-y
    Copyright Statement
    © 2002 EDP Sciences. Reproduced in accordance with the copyright policy of the publisher. This journal is available online - use hypertext links.
    Subject
    Mathematical sciences
    Physical sciences
    Publication URI
    http://hdl.handle.net/10072/6964
    Collection
    • Journal articles

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