Correlation between Local Structure Order and Spatial Heterogeneity in a Metallic Glass

Fan Zhu, Akihiko Hirata, Pan Liu, Shuangxi Song, Yuan Tian, Jiuhui Han, Takeshi Fujita, Mingwei Chen

研究成果: Article

38 引用 (Scopus)

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Although nanoscale spatial heterogeneity of metallic glasses has been demonstrated by extensive experimental and theoretical investigations, the nature of spatial heterogeneity remains poorly known owing to the absence of a structural depiction of the inhomogeneity from experimental insight. Here we report the experimental characterization of the spatial heterogeneity of a metallic glass by utilizing state-of-the-art angstrom-beam electron diffraction and scanning transmission electron microscopy. The subnanoscale electron diffraction reveals that the nanoscale spatial heterogeneity and corresponding density fluctuation have a close correlation with the local structure variation from icosahedronlike to tetragonal crystal-like order. The structural insights of spatial heterogeneity have important implications in understanding the properties and dynamics of metallic glasses.

元の言語English
記事番号215501
ジャーナルPhysical Review Letters
119
発行部数21
DOI
出版物ステータスPublished - 2017 11 20
外部発表Yes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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