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Symmetric carbon te...
Symmetric carbon tetramers forming spin qubits in hexagonal boron nitride
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- Benedek, Zsolt (författare)
- Wigner Res Ctr Phys, Hungary; MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary; Univ Alabama, AL 35487 USA
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- Babar, Rohit (författare)
- Wigner Res Ctr Phys, Hungary; MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary
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- Ganyecz, Adam (författare)
- Wigner Res Ctr Phys, Hungary; MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary
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- Szilvasi, Tibor (författare)
- Univ Alabama, AL 35487 USA
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- Legeza, Ors (författare)
- Wigner Res Ctr Phys, Hungary; Tech Univ Munich, Germany
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- Barcza, Gergely (författare)
- Wigner Res Ctr Phys, Hungary; MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary; Univ Alabama, AL 35487 USA
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- Ivády, Viktor (författare)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten,MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary; Eotvos Lorand Univ, Hungary
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(creator_code:org_t)
- NATURE PORTFOLIO, 2023
- 2023
- Engelska.
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Ingår i: npj Computational Materials. - : NATURE PORTFOLIO. - 2057-3960. ; 9:1
- Relaterad länk:
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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
Ämnesord
Stäng
- Point defect quantum bits in semiconductors have the potential to revolutionize sensing at atomic scales. Currently, vacancy-related defects are at the forefront of high spatial resolution and low-dimensional sensing. On the other hand, it is expected that impurity-related defect structures may give rise to new features that could further advance quantum sensing in low dimensions. Here, we study the symmetric carbon tetramer clusters in hexagonal boron nitride and propose them as spin qubits for sensing. We utilize periodic-DFT and quantum chemistry approaches to reliably and accurately predict the electronic, optical, and spin properties of the studied defect. We show that the nitrogen-centered symmetric carbon tetramer gives rise to spin state-dependent optical signals with strain-sensitive intersystem crossing rates. Furthermore, the weak hyperfine coupling of the defect to their spin environments results in a reduced electron spin resonance linewidth that can enhance sensitivity.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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