Torque detected broad band electron spin resonance.
Torque detected broad band electron spin resonance.
复制标题
扭矩检测到宽带电子自旋共振。
DOI：
--
复制
发表时间：
2010
影响因子：
1.6
通讯作者：
M. Dressel
中科院分区：
文献类型：
--
作者：
F. El Hallak;J. van Slageren;M. Dressel
我们提出了一种新的技术来测量高频电子自旋共振谱在一个宽的频率范围内（30-1440 GHz）与高灵敏度。我们使用一个准光学装置与可调频率源诱导磁共振跃迁。这些转变是通过悬臂梁转矩磁力测量法测量磁转矩信号的变化来检测的。该设置允许调谐频率、磁场、偏振以及样品与外部磁场之间的角度。我们证明了这种技术的能力，通过显示初步的结果上获得的Fe（4）分子纳米磁体的单晶。
We present a novel technique to measure high frequency electron spin resonance spectra in a broad frequency range (30-1440 GHz) with high sensitivity. We use a quasioptical setup with tunable frequency sources to induce magnetic resonance transitions. These transitions are detected by measuring the change in the magnetic torque signal by means of cantilever torque magnetometry. The setup allows tuning of the frequency, magnetic field, polarization, and the angle between the sample and the external magnetic field. We demonstrate the capabilities of this technique by showing preliminary results obtained on a single crystal of an Fe(4) molecular nanomagnet.