University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Quantitative analysis of bonding in 90° partial dislocation in diamond

Jenkins, S and Heggie, MI (2000) Quantitative analysis of bonding in 90° partial dislocation in diamond Journal of Physics Condensed Matter, 12 (49). pp. 10325-10333.

Full text not available from this repository.

Abstract

The soliton model for motion of the 90° partial in silicon has provided an explanation for the large reduction in activation energy (1 eV) which occurs under prolonged exposure to an H plasma. Applying the same theoretical model to diamond yields a drop of 1.6 eV and puts dislocation motion into the realm of the possible. Here we examine with the `atoms in molecules' method the bonding in the local energy minima and saddle point structures involved in motion of the 90° partial. We find bonds with graphite character in the soliton, and, to a greater extent, in its saddle points for motion and kink pair nucleation. The presence of H does not suppress this character in any structure other than the kink pair, in which H is far less compressed. Furthermore we characterize the over-coordination of H in these structures.

Item Type: Article
Authors :
NameEmailORCID
Jenkins, SUNSPECIFIEDUNSPECIFIED
Heggie, MIm.heggie@surrey.ac.ukUNSPECIFIED
Date : 11 December 2000
Identification Number : 10.1088/0953-8984/12/49/336
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:43
Last Modified : 17 May 2017 12:43
URI: http://epubs.surrey.ac.uk/id/eprint/836453

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800