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A transient semimetallic layer in detonating nitromethane
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Journal Article
A transient semimetallic layer in detonating nitromethane
2008
Overview
Despite decades of research, the microscopic details and extreme states of matter found within a detonating high explosive have yet to be elucidated. Here we present the first quantum molecular-dynamics simulation of a shocked explosive near detonation conditions. We discover that the wide-bandgap insulator nitromethane (CH
3
NO
2
) undergoes chemical decomposition and a transformation into a semimetallic state for a limited distance behind the detonation front. We find that this transformation is associated with the production of charged decomposition species and provides a mechanism to explain recent experimental observations.
Publisher
Nature Publishing Group UK,Nature Publishing Group
