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Effects of dislocation interactions: application to the period-doubled core of the 90° partial in silicon
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-1655-6658
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.ORCID iD: 0000-0002-0292-1159
1998 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 80, no 25, p. 5568-71Article in journal (Refereed) Published
Abstract [en]

The elastic strain field of a dislocation is highly affected by nearby dislocations. The effects of dislocation-dislocation interactions on elastic energy and core structure are analyzed using a new and self-consistent method to apply periodic boundary conditions on unit cells containing dislocations. Local density functional theory on hydrogen terminated clusters is used to gauge the effects of long-range elastic fields on the core structure of the 90° partial in silicon. It is shown that the single and double period structures of this core are very close in energy, and that the structure adopted probably depends on the environment in which the dislocation is located

Place, publisher, year, edition, pages
1998. Vol. 80, no 25, p. 5568-71
National Category
Other Physics Topics Computational Mathematics
Research subject
Fysik; Scientific Computing
Identifiers
URN: urn:nbn:se:ltu:diva-16226DOI: 10.1103/PhysRevLett.80.5568ISI: 000074313000027Local ID: fd55d050-bb57-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-16226DiVA, id: diva2:989202
Note
Godkänd; 1998; 20070131 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Lehto, NiklasÖberg, Sven

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