Quantitative analysis of bonding in 90° partial dislocation in diamond
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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 | |||||||||
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| Divisions : | Surrey research (other units) | |||||||||
| Authors : |
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| Date : | 11 December 2000 | |||||||||
| DOI : | 10.1088/0953-8984/12/49/336 | |||||||||
| Depositing User : | Symplectic Elements | |||||||||
| Date Deposited : | 17 May 2017 12:43 | |||||||||
| Last Modified : | 24 Jan 2020 22:43 | |||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/836453 |
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