An ultrafast vector magneto-optical Kerr effect (MOKE) microscope with integrated time-synchronized electrical pulses, two-dimensional magnetic fields, and low-temperature capabilities is reported. The broad range of capabilities of this instrument allows the comprehensive study of spin-orbital interaction-driven magnetization dynamics in a variety of novel magnetic materials or heterostructures: (1) electrical-pump and optical-probe spectroscopy allows the study of current-driven magnetization dynamics in the time domain, (2) two-dimensional magnetic fields along with the vector MOKE microscope allow the thorough study of the spin-orbital-interaction induced magnetization re-orientation in arbitrary directions, and (3) the low-temperature capability allows us to explore novel materials/devices where emergent phenomena appear at low temperature. We discuss the details and challenges of this instrument development and integration and present two datasets that demonstrate and benchmark the capabilities of this instrument: (a) a room-temperature time-domain study of current-induced magnetization dynamics in a ferromagnet/heavy metal bilayer and (b) a low-temperature quasi-static polar MOKE study of the magnetization of a novel compensated ferrimagnet.

中文翻译：

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用于三维磁振子和自旋轨道扭矩动力学的低温超快光学研究系统的开发

报道了一种具有集成时间同步电脉冲、二维磁场和低温能力的超快矢量磁光克尔效应 (MOKE) 显微镜。该仪器的广泛功能允许对各种新型磁性材料或异质结构中的自旋轨道相互作用驱动的磁化动力学进行全面研究：(1) 电泵和光学探针光谱允许研究电流驱动的磁化时域中的动力学，（2）二维磁场以及矢量 MOKE 显微镜允许在任意方向上彻底研究自旋轨道相互作用引起的磁化重新定向，以及（3）低温能力允许我们探索在低温下出现紧急现象的新材料/设备。