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National Academy of Sciences, Proceedings of the National Academy of Sciences, 39(111), p. 14052-14056, 2014

DOI: 10.1073/pnas.1412095111

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Soft spots and their structural signature in a metallic glass

Journal article published in 2014 by Jun Ding, Sylvain Patinet, Michael L. Falk ORCID, Yongqiang Cheng, Evan, Evan Ma
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Significance This work demonstrates a structure–property correlation in metallic glasses for the community of amorphous solids. It associates geometrically unfavored motifs, i.e., those most disordered local polyhedral packing structures in a metallic glass, with the soft spots defined from the vibrational modes and correlates them with shear transformation zones composed of atoms with large nonaffine displacements. The statistical correlation established thus ties together the heterogeneity inherent in the amorphous structure with the spatial heterogeneity in the mechanical (elastic and plastic) properties of a metallic glass.