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arXiv · 2208.05725

Nonphononic spectrum of two-dimensional structural glasses

Edan Lerner·Eran Bouchbinder
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Abstract

The scaling form and system-size dependence of the low-frequency wing of the nonphononic vibrational spectrum of two-dimensional structural glasses have been debated in recent literature. Here we provide numerical evidence that the prefactor $A_{\rm g}$ of the low-frequency nonphononic vibrational spectrum -- the latter grows from zero frequency ($\omega\!=\!0$) as $A_{\rm g}\omega^\beta$ -- is system-size dependent, and that the exponent $\beta$ exhibits a similar glass-formation-protocol and system-size dependence as seen in three-dimensional structural glasses.

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Edan Lerner, Eran Bouchbinder. 2022-08-11. Nonphononic spectrum of two-dimensional structural glasses. https://doi.org/10.1063/5.0120115

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