Academic Journal
Symmetric carbon tetramers forming spin qubits in hexagonal boron nitride
| العنوان: | Symmetric carbon tetramers forming spin qubits in hexagonal boron nitride |
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| المؤلفون: | Benedek, Zsolt, Babar, Rohit, Ganyecz, Adam, Szilvasi, Tibor, Legeza, Ors, Barcza, Gergely, Ivády, Viktor |
| بيانات النشر: | Linköpings universitet, Teoretisk Fysik Linköpings universitet, Tekniska fakulteten Wigner Res Ctr Phys, Hungary; MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary; Univ Alabama, AL 35487 USA Wigner Res Ctr Phys, Hungary; MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary Univ Alabama, AL 35487 USA Wigner Res Ctr Phys, Hungary; Tech Univ Munich, Germany MTA ELTE Lendulet Momentum NewQubit Res Grp, Hungary; Eotvos Lorand Univ, Hungary NATURE PORTFOLIO |
| سنة النشر: | 2023 |
| المجموعة: | Linköping University Electronic Press (LiU E-Press) |
| مصطلحات موضوعية: | Condensed Matter Physics, Den kondenserade materiens fysik |
| الوصف: | 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. ; Funding Agencies|Fruitful discussions with Igor Aharonovich and Jean-Philippe Tetienne are greatly acknowledged. This research was supported by the National Research, Development, and Innovation Office of Hungary within the Quantum Information National Laboratory of Hungar [2022-2.1.1-NL-2022-00004, FK 135496, FK 145395, K134983]; National Research, Development, and Innovation Office of Hungary within the Quantum Information National Laboratory of Hungary [2018.0071, TKP2021-NVA-04]; National Research, Development, and Innovation Office of Hungary within the Quantum Information National Laboratory of Hungary [2022-2.1.1-NL-2022-00004]; National Research, Development, and Innovation Office of Hungary [FK 135496, FK 145395, K134983]; Knut and Alice Wallenberg Foundation [2018.0071]; Hans Fischer Senior Fellowship program - Technical University of Munich - Institute for Advanced Study [TKP2021-NVA-04]; Center for Scalable and Predictive Methods for Excitation and Correlated Phenomena (SPEC) as part of the Computational Chemical ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | npj Computational Materials, 2023, 9:1; orcid:0000-0003-0111-5101; http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-198817; ISI:001082018800002 |
| DOI: | 10.1038/s41524-023-01135-z |
| الاتاحة: | http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-198817 https://doi.org/10.1038/s41524-023-01135-z |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CFD37B59 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41524-023-01135-z |
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