Dislocations without deep states in α-quartz
- 1 June 1985
- journal article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 51 (6) , L69-L72
- https://doi.org/10.1080/13642818508243147
Abstract
Following an earlier paper on the application to dislocations of the Keating potential adapted for α-quartz, an extension of the potential that includes a mutual repulsion for oxygen ions is presented. This additional feature prevents the inward collapse of the cores of screw dislocations, particularly PSH−, but does not have a strong effect on other dislocations. Two new types of dislocation with Burgers vector c and line direction a are included. It appears that none of the 15 dislocations relaxed with the new potential gives rise to deep states.Keywords
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