Demonstration of NV-detected Electron Spin Resonance at 4.2 Tesla

ORAL

Abstract

The nitrogen-vacancy (NV) center is an excellent candidate for single-spin electron spin resonance (ESR) due to its unique optical properties and high sensitivity to external magnetic fields [1]. High magnetic fields enable ESR spectroscopy with improved spin polarization, increased control over spin dynamics, improved insight into molecular motion, and high spectral resolution. The increased resolution enables investigation of complex systems with similar g values. For example, a field of 4.2 Tesla would provide clear spectral separation of external nitroxide spin labels from the featureless “g=2” signal often seen for shallow NV centers. Within this talk we present our recent demonstration of NV-detected ESR from both single and ensemble NV spin systems at the highest magnetic field to date, 4.2 Tesla [2]. In addition, we discuss developments in external spin detection using NV-detected ESR at high magnetic fields.

[1] B. Fortman and S. Takahashi, J. Phys. Chem. A.123, (2019).
[2] B. Fortman, J. Pena, and S. Takahashi, Appl. Phys. Lett. 116, 174004 (2020).

*This work was supported by the National Science Foundation (CHE- 2004252).

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Presenters

  • Benjamin Fortman

    • Department of Chemistry, University of Southern California, Los Angeles, CA
    • Dept. of Chemistry, Univ of Southern California

Authors

  • Benjamin Fortman

    • Department of Chemistry, University of Southern California, Los Angeles, CA
    • Dept. of Chemistry, Univ of Southern California

  • Yuxiao Hang

    • Department of Physics & Astronomy, University of Southern California, Los Angeles, CA
    • Dept. of Physics & Astronomy, Univ of Southern California

  • Noah Tischler

    • Dept. of Chemistry, Univ of Southern California

  • Susumu Takahashi

    • Department of Chemistry and Department of Physics & Astronomy, University of Southern California, Los Angeles, CA
    • Dept. of Physics & Astronomy, Univ of Southern California