Enhancing elastic properties of single element amorphous solids through long-range interactions

J Moon and T Egami, APPLIED PHYSICS LETTERS, 119, 051901 (2021).

DOI: 10.1063/5.0056108

Elastic properties of amorphous solids remain a topic of intense interest due to their important roles in a wide range of applications. Prior works have focused on short-range, local structural features, such as number density and coordination number, to elucidate the underlying mechanism of elastic moduli in glasses. Here, we report strong correlations among the spatial extension of the interatomic potential, elastic moduli, and the coherence lengths of the medium-range structural order through molecular dynamics simulations for single element glasses. Our findings demonstrate an unconventional design principle to engineer elastic properties by extending the medium-range order and provide insights into the microscopic origin of elastic properties in amorphous solids. Published under an exclusive license by AIP Publishing.

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