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Effects of grown-in...
Effects of grown-in defects on electron spin polarization in dilute nitride alloys
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- Wang, Xingjun, 1972- (författare)
- Linköpings universitet,Tekniska högskolan,Funktionella elektroniska material
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- Buyanova, Irina, 1960- (författare)
- Linköpings universitet,Tekniska högskolan,Funktionella elektroniska material
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- Chen, Weimin, 1959- (författare)
- Linköpings universitet,Tekniska högskolan,Funktionella elektroniska material
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- Hong, Y. G. (författare)
- Department of Electrical and Computer Engineering Univeristy of California, La Jolla, California 92093, USA
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- Tu, C. W. (författare)
- Department of Electrical and Computer Engineering University of California, La Jolla, California 92093, USA
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(creator_code:org_t)
- 2008-05-13
- 2008
- Engelska.
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Ingår i: 7th International Conference on Nitride Semiconductors ICNS-7,2007. - phys. stat. sol. (c) vol. 5 : WILEYVCH Verlag GmbH & Co. KGaA, Weinheim. ; , s. 1529-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Strong electron spin polarization in GaNAs epilayers and multiple quantum well structures is observed upon optical orientation at room temperature. The effect is explained in terms of spin dependent recombination (SDR) involving deep paramagnetic defects formed upon N incorporation in GaNAs. Concentration of the corresponding defects is shown to be enhanced during growth at low temperatures but is suppressed by post-growth annealing. Optically detected magnetic resonance (ODMR) measurements performed in the studied structures reveal two paramagnetic defects participating in carrier recombination. One of them is identified as a complex involving AsGa antisite. Correlation between concentrations of the defects monitored via ODMR and in optical orientation measurements is observed which suggests that the same defects may be involved in both processes.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- GaNAs
- SDR
- ODMR
- NATURAL SCIENCES
- NATURVETENSKAP
- Semiconductor physics
- Halvledarfysik
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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