High-sensitive detection of small spin ensemble in pulsed high magnetic fields by introduction of micromachine technology

脉冲磁铁可以获得很强的磁场，但由于脉冲宽度有限，很难获得高灵敏度。在本研究中，我们关注微机械技术，并利用微器件开发了一种高灵敏度、快速响应的测量系统。利用这项技术，我们成功地对太赫兹区的电子自旋共振进行了机械探测。此外，还制作了定制的悬臂梁，以优化强磁场下的测量设备。

Strong magnetic field can be obtained using a pulse magnet, but it is difficult to achieve high sensitivity due to its limited pulse duration. In this study, we have paid attention to micromachine technology, and have developed a measurement system with high sensitivity and fast response using microdevices. With this technique, we succeeded in mechanical detection of electron spin resonance in the terahertz region. Besides, custom cantilevers were fabricated to optimize measurement devices in strong magnetic fields.