Probst, S;
Zhang, G;
Rančić, M;
Ranjan, V;
Le Dantec, M;
Zhang, Z;
Albanese, B;
... Bertet, P; + view all
(2020)
Hyperfine spectroscopy in a quantum-limited spectrometer.
Magnetic Resonance
, 1
(2)
pp. 315-330.
10.5194/mr-1-315-2020.
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Abstract
We report measurements of electron-spin-echo envelope modulation (ESEEM) performed at millikelvin temperatures in a custom-built high-sensitivity spectrometer based on superconducting micro-resonators. The high quality factor and small mode volume (down to 0.2 pL) of the resonator allow us to probe a small number of spins, down to 5 × 102. We measure two-pulse ESEEM on two systems: erbium ions coupled to 183W nuclei in a natural-abundance CaWO4 crystal and bismuth donors coupled to residual 29Si nuclei in a silicon substrate that was isotopically enriched in the 28Si isotope. We also measure three- and five-pulse ESEEM for the bismuth donors in silicon. Quantitative agreement is obtained for both the hyperfine coupling strength of proximal nuclei and the nuclear-spin concentration.
| Type: | Article |
|---|---|
| Title: | Hyperfine spectroscopy in a quantum-limited spectrometer |
| Location: | Germany |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.5194/mr-1-315-2020 |
| Publisher version: | https://doi.org/10.5194/mr-1-315-2020 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10180930 |
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