论文标题
通过量子旋转传感器，具有可变波形的木制激发的纳米级检测
Nanoscale Detection of Magnon Excitations with Variable Wavevectors Through a Quantum Spin Sensor
论文作者
论文摘要
我们通过近距离氮 - 胶囊（NV）单旋转传感器报告了磁绝缘子Y3FE5O12薄膜中具有广泛波形薄膜的镁的光学检测。通过多麦克努子散射过程，激发的木蛋白在NV电子自旋共振频率上产生波动的磁场，从而加速了NV旋转的松弛。通过测量NV中心发射的自旋依赖性光致发光的变化，可以通过光学地访问具有〜5 x 10^7 m-1的可变波形的镁质，从而提供了替代的透视图，以揭示磁性系统中的潜在旋转行为。我们的结果突出了NV单旋量子传感器在探索新兴旋转材料的纳米级旋转动力学方面提供的巨大机会。
We report the optical detection of magnons with a broad range of wavevectors in magnetic insulator Y3Fe5O12 thin films by proximate nitrogen-vacancy (NV) single-spin sensors. Through multi-magnon scattering processes, the excited magnons generate fluctuating magnetic fields at the NV electron spin resonance frequencies, which accelerate the relaxation of NV spins. By measuring the variation of the emitted spin-dependent photoluminescence of the NV centers, magnons with variable wavevectors up to ~ 5 x 10^7 m-1 can be optically accessed, providing an alternative perspective to reveal the underlying spin behaviors in magnetic systems. Our results highlight the significant opportunities offered by NV single-spin quantum sensors in exploring nanoscale spin dynamics of emergent spintronic materials.
