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Silicon vacancy in SiC as a promising quantum system for single-defect and single-photon spectroscopy
Abstract
Results of experiments are presented that suggest that the Si vacancy in SiC is a promising quantum system for single-defect and single-photon spectroscopy in the infrared region. The investigation was carried out with electron paramagnetic resonance (EPR), zero-field optically detected magnetic resonance (ODMR), direct-detection EPR (DD-EPR), and high-resolution fluorescence-excitation spectroscopy. Depending on the temperature, crystal polytype, and crystal position, two opposite schemes have been observed for the optical alignment of the populations of the spin sublevels of the high-spin ground state of the Si vacancy in SiC upon irradiation with unpolarized light at the zero-phonon lines (ZPLs). A giant change has been found in the luminescence intensity of the ZPLs in zero magnetic field upon the application of resonant microwaves which induce transitions between the spin sublevels of the vacancy ground state thus opening the possibility for magnetic-resonance detection of a single vacancy. The optical alignment of the populations of the spin sublevels in the ground state of the Si vacancy was shown with DD-EPR. Surprisingly narrow ZPLs of Si vacancies with a width less than 0.05 meV have been observed which seem to be the narrowest detected so far in SiC.
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Cites
Stable single-photon source in the near infrared
Gaebel, T., Popa, I., Gruber, A., Domhan, M., Jelezko, F., & Wrachtrup, J. (2004) · New Journal of Physics · doi:10.1088/1367-2630/6/1/098 · Cited by 242
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Koehl, W. F., Buckley, B. B., Heremans, F. J., Calusine, G., & Awschalom, D. D. (2011) · Nature · doi:10.1038/nature10562 · Cited by 848
Material platforms for spin-based photonic quantum technologies
Atatüre, M., Englund, D., Vamivakas, N., Lee, S.-Y., & Wrachtrup, J. (2018) · Nature Reviews Materials · doi:10.1038/s41578-018-0008-9 · Cited by 766
Materials challenges and opportunities for quantum computing hardware
de Leon, N. P., Itoh, K. M., Kim, D., Mehta, K. K., Northup, T. E., Paik, H., Palmer, B. S., Samarth, N., Sangtawesin, S., & Steuerman, D. W. (2021) · Science · doi:10.1126/science.abb2823 · Cited by 710
Coherent control of single spins in silicon carbide at room temperature
Widmann, M., Lee, S.-Y., Rendler, T., Son, N. T., Fedder, H., Paik, S., Yang, L.-P., Zhao, N., Yang, S., Booker, I., et al. (2015) · Nature Materials · doi:10.1038/nmat4145 · Cited by 668
A silicon carbide room-temperature single-photon source
Castelletto, S., Johnson, B. C., Ivády, V., Stavrias, N., Umeda, T., Gali, A., & Ohshima, T. (2014) · Nature Materials · doi:10.1038/nmat3806 · Cited by 592
Metadata
- Authors
- Baranov, P. G., Bundakova, A. P., Soltamova, A. A., Orlinskii, S. B., Borovykh, I. V., Zondervan, R., Verberk, R., & Schmidt, J.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2011-03-14
- Volume
- 83
- Issue
- 12
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2069554128
- Cited by
- 223
- References
- 1
- FWCI
- 4.96
- Type
- journal article
- Language
- en
- Open access
- closed
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- Baranov, P. G., Bundakova, A. P., Soltamova, A. A., Orlinskii, S. B., Borovykh, I. V., Zondervan, R., Verberk, R., & Schmidt, J. (2011). Silicon vacancy in SiC as a promising quantum system for single-defect and single-photon spectroscopy. Physical Review B. https://doi.org/10.1103/physrevb.83.125203
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