Ranjan, V;
Probst, S;
Albanese, B;
Schenkel, T;
Vion, D;
Esteve, D;
Morton, JJL;
(2020)
Electron spin resonance spectroscopy with femtoliter detection volume.
Applied Physics Letters
, 116
(18)
, Article 184002. 10.1063/5.0004322.
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Abstract
We report electron spin resonance measurements of donors in silicon at millikelvin temperatures using a superconducting LC planar micro-resonator and a Josephson parametric amplifier. The resonator includes a nanowire inductor, defining a femtoliter detection volume. Due to strain in the substrate, the donor resonance lines are heavily broadened. Single-spin to photon coupling strengths up to ∼3 kHz are observed. The single shot sensitivity is 120 ± 24 spins/Hahn echo, corresponding to ≈12±3 spins / √Hz for repeated acquisition.
| Type: | Article |
|---|---|
| Title: | Electron spin resonance spectroscopy with femtoliter detection volume |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1063/5.0004322 |
| Publisher version: | https://doi.org/10.1063/5.0004322 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Quantum limit, Nuclear magnetic resonance, Electron spin echo envelope modulation spectroscopy, Hyperfine structure, Electron paramagnetic resonance spectroscopy |
| 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/10100452 |
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