Identification and tunable optical coherent control of transition-metal spins in silicon carbide
| Autor: | Olger V. Zwier, Remco W. A. Havenith, Andreas Gällström, Nguyen Tien Son, Björn Magnusson, Alexandre Ellison, Caspar H. van der Wal, Carmem M. Gilardoni, Tom Bosma, Ivan Gueorguiev Ivanov, Freddie Hendriks, Gerrit J. J. Lof |
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| Přispěvatelé: | Physics of Nanodevices, Theoretical Chemistry |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics::Optics
02 engineering and technology Quantum entanglement 01 natural sciences lcsh:QA75.5-76.95 chemistry.chemical_compound Computer Science (miscellaneous) ENTANGLEMENT Condensed Matter - Materials Science Quantum Physics 021001 nanoscience & nanotechnology DIAMOND SPINS MAGNETIC-RESONANCE TECHNIQUES lcsh:QC1-999 3. Good health Chemistry Computational Theory and Mathematics SINGLE SPINS Optoelectronics Condensed Matter::Strongly Correlated Electrons 0210 nano-technology Coherence (physics) Materials science Computer Networks and Communications Atom and Molecular Physics and Optics FOS: Physical sciences Quantum state 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Silicon carbide 010306 general physics Spins Condensed Matter - Mesoscale and Nanoscale Physics business.industry Materials Science (cond-mat.mtrl-sci) Statistical and Nonlinear Physics ELECTRON SPINS Quantum technology CENTERS Semiconductor ROOM-TEMPERATURE chemistry Physics and Astronomy Coherent control DEFECT MAGNETOMETRY Atom- och molekylfysik och optik lcsh:Electronic computers. Computer science business Quantum Physics (quant-ph) QUANTUM lcsh:Physics |
| Zdroj: | Npj quantum information, 4:48. SPRINGERNATURE NPJ QUANTUM INFORMATION npj Quantum Information, Vol 4, Iss 1, Pp 1-7 (2018) |
| ISSN: | 2056-6387 |
| Popis: | Color centers in wide-bandgap semiconductors are attractive systems for quantum technologies since they can combine long-coherent electronic spin and bright optical properties. Several suitable centers have been identified, most famously the nitrogen-vacancy defect in diamond. However, integration in communication technology is hindered by the fact that their optical transitions lie outside telecom wavelength bands. Several transition-metal impurities in silicon carbide do emit at and near telecom wavelengths, but knowledge about their spin and optical properties is incomplete. We present all-optical identification and coherent control of molybdenum-impurity spins in silicon carbide with transitions at near-infrared wavelengths. Our results identify spin $S=1/2$ for both the electronic ground and excited state, with highly anisotropic spin properties that we apply for implementing optical control of ground-state spin coherence. Our results show optical lifetimes of $\sim$60 ns and inhomogeneous spin dephasing times of $\sim$0.3 $\mu$s, establishing relevance for quantum spin-photon interfacing. Comment: Updated version with minor correction, full Supplementary Information included |
| Databáze: | OpenAIRE |
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