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Self-interstitial in germanium
School of Physics, University of Exeter.
School of Physics, University of Exeter.
School of Physics, University of Exeter.
School of Natural Science, University of Newcastle upon Tyne.
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2007 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 99, no 17, p. 175502-Article in journal (Refereed) Published
Abstract [en]

Low-temperature radiation damage in n- and p-type Ge is strikingly different, reflecting the charge-dependent properties of vacancies and self-interstitials. We find, using density functional theory, that in Ge the interstitial is bistable, preferring a split configuration when neutral and an open cage configuration when positively charged. The split configuration is inert while the cage configuration acts as a double donor. We evaluate the migration energies of the defects and show that the theory is able to explain the principal results of low-temperature electron-irradiation experiments.

Place, publisher, year, edition, pages
2007. Vol. 99, no 17, p. 175502-
National Category
Computational Mathematics
Research subject
Scientific Computing
Identifiers
URN: urn:nbn:se:ltu:diva-15165DOI: 10.1103/PhysRevLett.99.175502ISI: 000250506000043Scopus ID: 2-s2.0-35548998748Local ID: ea6a5900-a3f7-11dc-8fee-000ea68e967bOAI: oai:DiVA.org:ltu-15165DiVA, id: diva2:988138
Note
Validerad; 2007; 20071206 (pafi)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Öberg, Sven

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