Coherent spin resonance methods, such as nuclear magnetic resonance and electron spin resonance spectroscopy, have led to spectrally highly sensitive, non-invasive quantum imaging techniques. Here, we propose a pump-probe spin resonance spectroscopy approach, designed for electron microscopy, based on microwave pump fields and electron probes. We investigate how quantum spin systems couple to electron matter waves through their magnetic moments and how the resulting phase shifts can be utilized to gain information about the states and dynamics of these systems. Notably, state-of-the-art transmission electron microscopy provides the means to detect phase shifts almost as small as that due to a single electron spin. This could enable state-selective observation of spin dynamics on the nanoscale and indirect measurement of the environment of the examined spin systems, providing information, for example, on the atomic structure, local chemical composition and neighboring spins.

中文翻译：

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电子显微镜自旋共振光谱


相干自旋共振方法，例如核磁共振和电子自旋共振光谱，已经产生了光谱高度敏感的、非侵入性的量子成像技术。在这里，我们提出了一种基于微波泵浦场和电子探针的泵浦探针自旋共振光谱方法，专为电子显微镜而设计。我们研究量子自旋系统如何通过磁矩与电子物质波耦合，以及如何利用产生的相移来获取有关这些系统的状态和动力学的信息。值得注意的是，最先进的透射电子显微镜提供了检测几乎与单电子自旋引起的相移一样小的相移的方法。这可以实现纳米级自旋动力学的状态选择性观察，并间接测量所检查的自旋系统的环境，提供有关原子结构、局部化学成分和邻近自旋等信息。