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Updated: Jul 14, 2026

Preparation and Reactivity of Gasless Nanostructured Energetic Materials
Published on: April 2, 2015
The mechanism of diamond nucleation from energetic species
Y Lifshitz1, T Köhler, T Frauenheim
1Center of Super Diamond and Advanced Films and Department of Physics and Materials Science, City University Hong Kong, Hong Kong SAR. apshay@cityu.edu.hk
Abstract:
A model for diamond nucleation by energetic species (for example, bias-enhanced nucleation) is proposed. It involves spontaneous bulk nucleation of a diamond embryo cluster in a dense, amorphous carbon hydrogenated matrix; stabilization of the cluster by favorable boundary conditions of nucleation sites and hydrogen termination; and ion bombardment-induced growth through a preferential displacement mechanism. The model is substantiated by density functional tight-binding molecular dynamics simulations and an experimental study of the structure of bias-enhanced and ion beam-nucleated films. The model is also applicable to the nucleation of other materials by energetic species, such as cubic boron nitride.
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