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Sub-millisecond dyn...
Sub-millisecond dynamic nuclear spin hyperpolarization in a semiconductor : A case study from PIn antisite in InP
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- Wang, X. J. (författare)
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, China
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- Buyanova, Irina (författare)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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- Chen, Weimin (författare)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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(creator_code:org_t)
- American Physical Society, 2012
- 2012
- Engelska.
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Ingår i: Physical Review B Condensed Matter. - : American Physical Society. - 0163-1829 .- 1095-3795. ; 86:20, s. 205202-1-205202-6
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Optically detected magnetic resonance is employed to identify key factors governing dynamic nuclear polarization (DNP) in a semiconductor. We demonstrate that the extent of DNP can be efficiently controlled by varying lifetime of the localized electrons that transfer spin angular momentum to nuclei. The ultimate speed of a DNP process, on the other hand, is determined by the strength of hyperfine interaction that drives DNP. We show that about 50% nuclear spin polarization of a PIn antisite in InP can be achieved by shortening electron lifetime within a remarkably short time (<0.1 ms) due to strong hyperfine coupling.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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