Hybrid systems coupling quantum spin defects (QSD) and magnons can enable unique spintronic device functionalities and probes for magnetism. Here, we add electric field control of magnon-QSD coupling to such systems by integrating ferromagnet-ferroelectric multiferroic with nitrogen-vacancy (NV) center spins. Combining quantum relaxometry with ferromagnetic resonance measurements and analytical modeling, we reveal that the observed electric-field tuning results from ferroelectric polarization control of the magnon-generated fields at the NV. Exploiting the demonstrated control, we also propose magnon-enhanced hybrid electric field sensors with improved sensitivity.
@article{arxiv.2012.01497,
title = {Electric field control of interaction between magnons and quantum spin defects},
author = {Abhishek Bharatbhai Solanki and Simeon I. Bogdanov and Avinash Rustagi and Neil R. Dilley and Tingting Shen and Mohammad Mushfiqur Rahman and Wenqi Tong and Punyashloka Debashis and Zhihong Chen and Joerg Appenzeller and Yong P. Chen and Vladimir M. Shalaev and Pramey Upadhyaya},
journal= {arXiv preprint arXiv:2012.01497},
year = {2021}
}