Electric field control of interaction between magnons and quantum spin defects
Electric field control of interaction between magnons and quantum spin defects
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DOI：
10.1103/physrevresearch.4.l012025
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发表时间：
2020-12
影响因子：
4.2
通讯作者：
Abhishek. B. Solanki;S. Bogdanov;M. M. Rahman-M.;A. Rustagi;N. Dilley;Tingting Shen;Wen-Yi Tong;Punyashloka Debashis;Zhihong Chen;J. Appenzeller;Yong P Chen;V. Shalaev;P. Upadhyaya
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文献类型：
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作者：
Abhishek. B. Solanki;S. Bogdanov;M. M. Rahman-M.;A. Rustagi;N. Dilley;Tingting Shen;Wen-Yi Tong;Punyashloka Debashis;Zhihong Chen;J. Appenzeller;Yong P Chen;V. Shalaev;P. Upadhyaya
磁振子的纳米级磁场已经成为一种有前途的资源，用于相干驱动量子比特，如量子自旋缺陷（QSD），并开发磁性和其他类型量子物质的多功能探针。通过电场调节这种耦合将提供一种途径来解决增强基于QSD的电场感测和以最小功率局部操纵QSD量子位的突出挑战。在这里，我们展示了一种新的方法，这样的电场调谐使用铁磁铁电混合多铁性膜集成与氮空位（NV）中心自旋。结合NV-自旋弛豫与铁磁共振测量，我们揭示了铁电极化控制的磁各向异性，调谐磁振子产生的领域在NV。翻转的铁电极化改变NV自旋弛豫率的400%，这可以进一步提高了三个数量级的纳米图案的铁磁体。我们的研究结果提供了可能性，实现改进的NV感测的电场，电场可调的量子自旋电子器件，和磁振子/自旋探针的多铁性顺序和量子材料。
The nanoscale magnetic field of magnons has emerged as a promising resource for coherently driving qubits such as quantum spin defects (QSD) and developing versatile probes for magnetism and other types of quantum matter. Tuning this coupling via electric field would provide a path to address the outstanding challenges of enhancing QSD-based sensing of electric fields and locally manipulating QSD qubits with minimal power. Here, we demonstrate a new approach to such electric field tuning using a ferromagnet-ferroelectric hybrid multiferroic film integrated with nitrogen-vacancy (NV) center spins. Combining NV-spin relaxometry with ferromagnetic resonance measurements, we reveal that the ferroelectric polarization controls the magnetic anisotropy, which tunes the magnon-generated fields at the NVs. Flipping the ferroelectric polarization changes NV-spin relaxation rate by 400%, which could be further enhanced by three orders of magnitude by nanopatterning the ferromagnets. Our results offer possibilities of realizing improved NV-sensing of electric fields, electric-field-tunable quantum spintronic devices, and magnon/spin probes of the multiferroic order and quantum materials.