Inductive-detection electron-spin resonance spectroscopy with $\mathbf{65}\,$spins$/\sqrt{\text{Hz}}$ sensitivity

S. Probst; A. Bienfait; P. Campagne-Ibarcq; J. J. Pla; B. Albanese; J. F. Da Silva Barbosa; T. Schenkel; D. Vion; D. Esteve; K. Mølmer; J. J. L. Morton; R. Heeres; P. Bertet

doi:10.1063/1.5002540

Inductive-detection electron-spin resonance spectroscopy with $\mathbf{65}\,$spins$/\sqrt{\text{Hz}}$ sensitivity

Quantum Physics 2017-11-16 v1 Mesoscale and Nanoscale Physics

Authors: S. Probst , A. Bienfait , P. Campagne-Ibarcq , J. J. Pla , B. Albanese , J. F. Da Silva Barbosa , T. Schenkel , D. Vion , D. Esteve , K. Mølmer , J. J. L. Morton , R. Heeres , P. Bertet

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Abstract

We report electron spin resonance spectroscopy measurements performed at millikelvin temperatures in a custom-built spectrometer comprising a superconducting micro-resonator at $7$ GHz and a Josephson parametric amplifier. Owing to the small ${\sim}10^{-12}\lambda^3$ magnetic resonator mode volume and to the low noise of the parametric amplifier, the spectrometer sensitivity reaches $260\pm40$ spins $/$ echo and $65\pm10$ $\mathrm{spins}/\sqrt{\text{Hz}}$ , respectively.

Keywords

magnetic resonance superconducting quantum interference devices sensors and measurement

Cite

@article{arxiv.1708.09287,
  title  = {Inductive-detection electron-spin resonance spectroscopy with $\mathbf{65}\,$spins$/\sqrt{\text{Hz}}$ sensitivity},
  author = {S. Probst and A. Bienfait and P. Campagne-Ibarcq and J. J. Pla and B. Albanese and J. F. Da Silva Barbosa and T. Schenkel and D. Vion and D. Esteve and K. Mølmer and J. J. L. Morton and R. Heeres and P. Bertet},
  journal= {arXiv preprint arXiv:1708.09287},
  year   = {2017}
}

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6 pages, 4 figures

Inductive-detection electron-spin resonance spectroscopy with $\mathbf{65}\,$spins$/\sqrt{\text{Hz}}$ sensitivity

Abstract

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