Torque magnetometry in pulsed magnetic fields with use of a commercial microcantilever
Torque magnetometry in pulsed magnetic fields with use of a commercial microcantilever
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DOI：
10.1063/1.1491999
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发表时间：
2002-08-01
影响因子：
1.6
通讯作者：
Osada, T
中科院分区：
文献类型：
--
作者：
Ohmichi, E;Osada, T
利用市售的压阻式微悬臂梁，研制了一种用于脉冲磁场中的微型扭矩计。在38 T下获得了接近5 × 10（-13）Am-2的高灵敏度。由于悬臂梁的高本征频率（fsimilar to 250 -300 kHz），对更快信号的响应得到了相当大的改善。在这篇文章中，我们成功地证明了sub-mug阶样品在脉冲磁场高达38 T，脉冲持续时间小于60 ms的磁矩数据。我们还发现，德哈斯-范阿尔芬数据是在稳定磁场中获得的与以前的报告很好地吻合。(C)2002年美国物理学会。
A miniature torquemeter for use in a pulsed magnetic field is developed by utilizing a commercially available piezoresistive microcantilever. The high sensitivity of similar to5x10(-13) Am-2 at 38 T is achieved. The response to faster signals were considerably improved due to high eigenfrequency of the cantilever (fsimilar to250-300 kHz). In this article, we successfully demonstrate the magnetic torque data of samples of sub-mug order in pulsed magnetic fields up to 38 T with pulse duration of less than 60 ms. We also found that the de Haas-van Alphen data are in good agreement with the previous reports obtained in steady magnetic fields. (C) 2002 American Institute of Physics.