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Theoretical model o...
Theoretical model of dynamic spin polarization of nuclei coupled to paramagnetic point defects in diamond and silicon carbide
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- Ivády, Viktor (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Hungarian Academic Science, Hungary
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- Szasz, Krisztian (author)
- Hungarian Academic Science, Hungary
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- Falk, Abram L. (author)
- University of Chicago, IL 60637 USA; IBM Corp, NY 10598 USA
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- Klimov, Paul V. (author)
- University of Chicago, IL 60637 USA; University of Calif Santa Barbara, CA 93106 USA
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- Christle, David J. (author)
- University of Chicago, IL 60637 USA; University of Calif Santa Barbara, CA 93106 USA
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- Janzén, Erik (author)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten
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- Abrikosov, Igor (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten,National University of Science and Technology MISIS, Russia; Tomsk State University, Russia
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- Awschalom, David D. (author)
- University of Chicago, IL 60637 USA
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- Gali, Adam (author)
- Hungarian Academic Science, Hungary; Budapest University of Technology and Econ, Hungary
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(creator_code:org_t)
- AMER PHYSICAL SOC, 2015
- 2015
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - : AMER PHYSICAL SOC. - 1098-0121 .- 1550-235X. ; 92:11, s. 115206-
- Related links:
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Dynamic nuclear spin polarization (DNP) mediated by paramagnetic point defects in semiconductors is a key resource for both initializing nuclear quantum memories and producing nuclear hyperpolarization. DNP is therefore an important process in the field of quantum-information processing, sensitivity-enhanced nuclear magnetic resonance, and nuclear-spin-based spintronics. DNP based on optical pumping of point defects has been demonstrated by using the electron spin of nitrogen-vacancy (NV) center in diamond, and more recently, by using divacancy and related defect spins in hexagonal silicon carbide (SiC). Here, we describe a general model for these optical DNP processes that allows the effects of many microscopic processes to be integrated. Applying this theory, we gain a deeper insight into dynamic nuclear spin polarization and the physics of diamond and SiC defects. Our results are in good agreement with experimental observations and provide a detailed and unified understanding. In particular, our findings show that the defect electron spin coherence times and excited state lifetimes are crucial factors in the entire DNP process.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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