论文标题
核表面声音共振与自旋旋转耦合
Nuclear Surface Acoustic Resonance with Spin-Rotation Coupling
论文作者
论文摘要
我们表明，在适当的平面静态磁场下，可以通过自旋旋转偶联来共振并检测到表面声波（SAW）腔的薄样本中的核自旋。由于这样的锯空腔可以具有高达$ 10^{4} $的质量因子，并且模式音量小至$ 10^{ - 2} $ mm $ $^{3} $估计共振的信噪比估计很高。我们认为，检测二维半导体的原子薄层的核自旋共振，迄今为止，使用常规电感方法已经超出了希望，这对拟议方案来说是一个现实的目标。
We show that, under an appropriate out-of-plane static magnetic field, nuclear spins in a thin specimen on a surface acoustic wave (SAW) cavity can be resonantly excited and detected through spin-rotation coupling. Since such a SAW cavity can have the quality factor as high as $10^{4}$ and the mode volume as small as $10^{-2}$ mm$^{3}$ the signal-to-noise ratio in detecting the resonance is estimated to be quite high. We argue that detecting nuclear spin resonance of a single flake of an atomically-thin layer of two-dimensional semiconductor, which has so far been beyond hope with the conventional inductive method, can be a realistic target with the proposed scheme.
