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Room temperature sp...
Room temperature spin filtering effect in GaNAs: Role of hydrogen
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- Puttisong, Yuttapoom (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska fakulteten
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- Dagnelund, Daniel (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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- Buyanova, Irina (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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- Tu, C W (author)
- Department of Electrical and Computer Engineering, University of California, La Jolla, California 92093, USA
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- Polimeni, A (author)
- INFM and Dipartimento di Fisica, Universita` di Roma “La Sapienza,” Piazzale A. Moro 2, I-00185 Roma, Italy
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- Capizzi, M (author)
- INFM and Dipartimento di Fisica, Universita` di Roma “La Sapienza,” Piazzale A. Moro 2, I-00185 Roma, Italy
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- Chen, Weimin (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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(creator_code:org_t)
- American Institute of Physics (AIP), 2011
- 2011
- English.
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In: Applied Physics Letters. - : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 99:15, s. 152109-
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Abstract
Subject headings
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- Effects of hydrogen on the recently discovered defect-engineered spin filtering in GaNAs are investigated by optical spin orientation and optically detected magnetic resonance. Post-growth hydrogen treatments are shown to lead to nearly complete quenching of the room-temperature spin-filtering effect in both GaNAs epilayers and GaNAs/GaAs multiple quantum wells, accompanied by a reduction in concentrations of Ga(i) interstitial defects. Our finding provides strong evidence for efficient hydrogen passivation of these spin-filtering defects, likely via formation of complexes between Gai defects and hydrogen, as being responsible for the Observed strong suppression of the spin-filtering effect after the hydrogen treatments.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- gallium arsenide
- gallium compounds
- hydrogen
- III-V semiconductors
- interstitials
- magnetic resonance
- passivation
- quenching (thermal)
- semiconductor epitaxial layers
- semiconductor quantum wells
- wide band gap semiconductors
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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