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Optical properties of the niobium centre in 4H, 6H, and 15R SiC
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
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2013 (English)In: SILICON CARBIDE AND RELATED MATERIALS 2012, Trans Tech Publications , 2013, Vol. 740-742, 405-408 p.Conference paper, Published paper (Refereed)
Abstract [en]

A set of lines in the photoluminescence spectra of 4H-, 6H-, and 15R-SiC in the near-infrared are attributed to Nb-related defects on the ground of doping experiments conducted with 4H-SiC. A model based on a an exciton bound at the Nb-centre in an asymmetric split vacancy configuration at a hexagonal site is proposed, which explains the structure of the luminescence spectrum and the observed Zeeman splitting of the lines.

Place, publisher, year, edition, pages
Trans Tech Publications , 2013. Vol. 740-742, 405-408 p.
Keyword [en]
transition metals; niobium; photoluminescence; Zeeman effect
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-96515DOI: 10.4028/www.scientific.net/MSF.740-742.405ISI: 000319785500095OAI: oai:DiVA.org:liu-96515DiVA: diva2:642368
Conference
9th European Conference on Silicon Carbide and Related Materials (ECSCRM 2012)
Available from: 2013-08-21 Created: 2013-08-20 Last updated: 2014-10-08

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Gueorguiev Ivanov, IvanGällström, AndreasLeone, StefanoKordina, OlleTien Son, NguyenHenry, AnneIvády, ViktorGali, AdamJanzén, Erik

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Gueorguiev Ivanov, IvanGällström, AndreasLeone, StefanoKordina, OlleTien Son, NguyenHenry, AnneIvády, ViktorGali, AdamJanzén, Erik
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Semiconductor MaterialsThe Institute of TechnologyTheoretical PhysicsDepartment of Physics, Chemistry and Biology
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