Magnetic detection of high-resolution electron spin resonance using a microcantilever in the millimeter-wave region up to 240 GHz.
Magnetic detection of high-resolution electron spin resonance using a microcantilever in the millimeter-wave region up to 240 GHz.
复制标题
使用微悬臂梁在高达 240 GHz 的毫米波区域进行高分辨率电子自旋共振磁检测。
DOI：
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发表时间：
2008
影响因子：
1.6
通讯作者：
H. Ohta
中科院分区：
文献类型：
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作者：
E. Ohmichi;N. Mizuno;M. Kimata;H. Ohta
提出了一种利用微悬臂梁实现高灵敏度电子自旋共振（ESR）磁检测的方法。采用调制技术和压阻悬臂梁相结合的方法，我们成功地观察到Co（NH（4））（2）（SO（4））（2）× 6 H（2）O（质量<1 μ g）单晶在80-240 GHz频率范围内的ESR信号。在4.5 K下实现的自旋灵敏度约为10（9）自旋/G，为高分辨率和高灵敏度的太赫兹ESR提供了有前途的应用。
Highly sensitive magnetic detection of electron spin resonance (ESR) using a microcantilever is presented. By combining a modulation technique with the use of a piezoresistive cantilever, we successfully observed ESR signals of a tiny single crystal (mass<1 microg) of Co Tutton salt, Co(NH(4))(2)(SO(4))(2) x 6 H(2)O, in the frequency region of 80-240 GHz. The achieved spin sensitivity was approximately 10(9) spins/G at 4.5 K, providing promising applications to high-resolution and high-sensitivity terahertz ESR.