Roughness and Scaling Properties of Oxide Glass Surfaces at the Nanoscale
- 12 February 2021
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 126 (6), 066101
- https://doi.org/10.1103/physrevlett.126.066101
Abstract
Using atomistic computer simulations we determine the roughness and topographical features of melt-formed (MS) and fracture surfaces (FS) of oxide glasses. We find that the topography of the MS is described well by the frozen capillary wave theory. The FS are significant rougher than the MS and depend strongly on glass composition. The height-height correlation function for the FS shows an unexpected logarithmic dependence on distance, in contrast to the power law found in experiments. We unravel the crucial role of spatial resolution on surface measurements and conclude that on length scales less than 10 nm FS are not self-affine fractals.Funding Information
- China Scholarship Council (201606050112)
- Institut Universitaire de France
- Grand Équipement National De Calcul Intensif
- CINES (A0050907572, A0070907572)
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