The mechanism of diamond nucleation from energetic species

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Y. Lifshitz
  • Th Köhler
  • Th Frauenheim
  • I. Guzmann
  • A. Hoffman
  • X. T. Zhou
  • S. T. Lee

Detail(s)

Original languageEnglish
Pages (from-to)1531-1533
Journal / PublicationScience
Volume297
Issue number5586
Publication statusPublished - 30 Aug 2002

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.

Citation Format(s)

The mechanism of diamond nucleation from energetic species. / Lifshitz, Y.; Köhler, Th; Frauenheim, Th; Guzmann, I.; Hoffman, A.; Zhang, R. Q.; Zhou, X. T.; Lee, S. T.

In: Science, Vol. 297, No. 5586, 30.08.2002, p. 1531-1533.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal