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1999--Hauch-J-A-Holland-D-Marder-M-P-Swinney-H-L--Si

Citation: J.A. Hauch, D. Holland, M.P. Marder, and H.L. Swinney (1999), "Dynamic Fracture in Single Crystal Silicon", Physical Review Letters, 82(19), 3823-3826. DOI: 10.1103/physrevlett.82.3823.
Abstract: We have measured the velocity of a running crack in brittle single crystal silicon as a function of energy flow to the crack tip. The experiments are designed to permit direct comparison with molecular dynamics simulations; therefore the experiments provide an indirect but sensitive test of interatomic potentials. Performing molecular dynamics simulations of brittle crack motion at the atomic scale we find that experiments and simulations disagree showing that interatomic potentials are not yet well understood.

Notes: This is a Stillinger-Weber (SW) paramaterization for Si due to Hauch et al. (1999). In this model, the original SW lambda value is doubled from 21.0 to 42.0 in order to obtain brittle behavior in fracture. The original SW parameterization for Si exhibits ductile behavior.

See Computed Properties
Notes: Listing found at https://openkim.org.
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See Computed Properties
Notes: Listing found at https://openkim.org. This version also rescales epsilon from 2.1682 eV to 2.315 eV to obtain the the experimental cohesive energy, E_coh = 4. 63 eV as was done with 1992--Balamane-H-Halicioglu-T-Tiller-W-A--Si.
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Date Created: October 5, 2010 | Last updated: June 09, 2022