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Electric-field sensing using Quantum spin defect/multiferroic hybrids

ORAL

Abstract

Quantum spin defects (QSD) are promising candidates for probing various condensed matter phenomena owing to their nanometer-scale resolution, wide temperature range, and noninvasive mode of operation. While the spin energy states of QSD are naturally susceptible to external magnetic noise, sensing electric field has so far relied on exploiting the weak Stark effect and/or high-density ensembles [Nature Phys., 7, 459 (2011), Phys. Rev. Applied 16, 024024 (2021)]. In this work, we propose an alternate route towards probing the DC electric field by utilizing the voltage control of magnon-QSD coupling in a ferroelectric/ferromagnetic/Nitrogen vacancy center hybrid. Our results demonstrate nearly an order of magnitude enhancement in sensitivity compared to the Stark effect, thus paving the way towards devising a nanoscale, room temperature hybrid E-field sensor.

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Publication: arXiv:2012.01497v2

Presenters

  • Mohammad Mushfiqur Rahman

    School of Electrical and Computer Engineering, Purdue University

Authors

  • Mohammad Mushfiqur Rahman

    School of Electrical and Computer Engineering, Purdue University

  • Abhishek B Solanki

    School of Electrical and Computer Engineering, Purdue University, Purdue University

  • Avinash Rustagi

    School of Electrical and Computer Engineering, Purdue University, Purdue University

  • Wenqi Tong

    School of Electrical and Computer Engineering, Purdue University

  • Yong P. Chen

    Department of Physics and Astronomy, Purdue University, Purdue University

  • Vladimir M Shalaev

    Purdue University, School of Electrical and Computer Engineering, Purdue University

  • Pramey Upadhyaya

    School of Electrical and Computer Engineering, Purdue University, Purdue University