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First-principles study of location of Er3+ ion-relationship to understanding of hyperfine interactions in the optoelectronic erbium-silicon system
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics.
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2007 (English)In: Hyperfine Interactions, ISSN 0304-3843, E-ISSN 1572-9540, Vol. 178, no 1-3, 51-56 p.Article in journal (Refereed) Published
Abstract [en]

The importance of hyperfine interactions in the Erbium-Silicon system is underscored by our first-principles Hartree-Fock Cluster investigations on the location of Erbium in Silicon. Our theoretical studies show that both substitutional and tetrahedral interstitial sites are stable for Er3+ ion with the latter having a larger binding energy. This conclusion is not completely supported by channeling experiments. It is suggested that Mossbauer measurements on Er-166 isotope would be valuable to compare experimental results with theoretical predictions of the hyperfine interactions of both magnetic and quadrupolar types to provide additional information about the location of Er3+.

Place, publisher, year, edition, pages
2007. Vol. 178, no 1-3, 51-56 p.
Keyword [en]
Silicon, Erbium, Hexagonal interstitial, Tetrahedral interstitial, Substitutional, Hyperfine interactions
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-107127DOI: 10.1007/s10751-008-9656-2ISI: 000260280700009OAI: oai:DiVA.org:uu-107127DiVA: diva2:227724
Available from: 2009-07-16 Created: 2009-07-16 Last updated: 2012-03-29Bibliographically approved

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Scheicher, Ralph H.
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