Low-Frequency Dynamics and Its Correlation of Nanoscale Structures in Amorphous Solids

Unlike the crystalline solids, the atomic arrangements in amorphous solids lack long-range translational and orientational order. Despite intense research activity on their structures, the details of how the atoms are packed in amorphous solids remain mysterious at present. Here, we propose a struct...

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Bibliographic Details
Published in:Journal of low temperature physics 2020-02, Vol.198 (3-4), p.158-166
Main Authors: Yang, Weiming, Li, Wenyu, Jiang, Qi, Huo, Juntao, Zhao, Yucheng, Liu, Haishun
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Condensed Matter Physics
Low temperature physics
Magnetic Materials
Magnetism
Physics
Physics and Astronomy
Short range order
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Summary:Unlike the crystalline solids, the atomic arrangements in amorphous solids lack long-range translational and orientational order. Despite intense research activity on their structures, the details of how the atoms are packed in amorphous solids remain mysterious at present. Here, we propose a structure feature like polymers and estimate the nanoscale of short-range order (SRO) and medium-range order (MRO) in this description according to the boson peak in amorphous solids. The result supports the concepts that (a) the low-frequency local vibrations are defined by the characteristic length of nanoscale clusters and (b) a decisive scale correlation of solvent atoms, SRO and MRO is about 1:3:7 in amorphous solids.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-019-02268-6