Articles | Volume 1, issue 2
Magn. Reson., 1, 315–330, 2020
https://doi.org/10.5194/mr-1-315-2020
Magn. Reson., 1, 315–330, 2020
https://doi.org/10.5194/mr-1-315-2020

Research article 17 Dec 2020

Research article | 17 Dec 2020

Hyperfine spectroscopy in a quantum-limited spectrometer

Sebastian Probst et al.

Cited articles

Abe, E., Tyryshkin, A. M., Tojo, S., Morton, J. J. L., Witzel, W. M., Fujimoto, A., Ager, J. W., Haller, E. E., Isoya, J., Lyon, S. A., Thewalt, M. L. W., and Itoh, K. M.: Electron spin coherence of phosphorus donors in silicon: Effect of environmental nuclei, Phys. Rev. B, 82, 121201, https://doi.org/10.1103/PhysRevB.82.121201, 2010. a
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Antipin, A., Katyshev, A., Kurkin, I., and Shekun, L.: Paramagnetic resonance and spin-lattice relaxation of Er3+ and Tb3+ ions in CaWO4 crystal lattice, Sov. Phys. Solid State, 10, 468–474, 1968. a
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Baumann, S., Paul, W., Choi, T., Lutz, C. P., Ardavan, A., and Heinrich, A. J.: Electron paramagnetic resonance of individual atoms on a surface, Science, 350, 417–420, https://doi.org/10.1126/science.aac8703, 2015. a
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Short summary
Electron spin detection was recently demonstrated using superconducting circuits and amplifiers at millikelvin temperatures, reaching the quantum limit of sensitivity. We use such a setup to measure electron-spin-echo envelope modulation on a small number of electron spins, in two model systems: bismuth donors in silicon and erbium ions doped in CaWO4 (calcium tungstate). Our results are a proof of principle that hyperfine spectroscopy is feasible with these quantum-limited ESR spectrometers.