Ioffe-Regel criterion and viscoelastic properties of amorphous solids
نویسندگان
چکیده
We show that viscoelastic effects play a crucial role in the damping of vibrational modes harmonic amorphous solids. The relaxation given plane wave is described by memory function semi-infinite one-dimensions mass-spring chain. initial energy spreads from first site chain to infinity. In beginning chain, there barrier, which significantly reduces decay below Ioffe-Regel frequency. To obtain parameters we present numerically stable method, based on Chebyshev expansion local density states.
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2021
ISSN: ['1550-2376', '1539-3755']
DOI: https://doi.org/10.1103/physreve.103.042608