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Identification of the local vibrational modes of small nitrogen clusters in dilute GaAsN
School of Physics, University of Exeter.
Centre for Electronic Materials and Devices, Imperial College, London.
School of Physics, University of Exeter.
Centre for Electronic Materials and Devices, Imperial College, London.
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2007 (English)In: Physica. B, Condensed matter, ISSN 0921-4526, E-ISSN 1873-2135, Vol. 401-402, p. 339-342Article in journal (Refereed) Published
Abstract [en]

Ultra-high-resolution infra-red local vibrational mode (IR LVM) spectroscopy measurements together with density-functional calculations have been used to identify the signatures of close substitutional nitrogen (NAs) pairs in GaAs1 - x Nx alloys with concentrations of x < 0.025. We show that the presence of sub-peaks close to the NAs absorption band can be attributed to nitrogen pairs up to fourth neighbor position. Additionally, we suggest that the nitrogen pairs which give rise to the deepest levels below the conduction band edge are the first to be removed upon annealing

Place, publisher, year, edition, pages
2007. Vol. 401-402, p. 339-342
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Computational Mathematics
Research subject
Scientific Computing
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URN: urn:nbn:se:ltu:diva-7386DOI: 10.1016/j.physb.2007.08.182ISI: 000252041000080Scopus ID: 2-s2.0-36048964242Local ID: 5c218620-bd92-11df-a707-000ea68e967bOAI: oai:DiVA.org:ltu-7386DiVA, id: diva2:980275
Note
Validerad; 2007; 20100911 (andbra)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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