Development of Pressure Calibration Method in High-Pressure THz ESR System

Development of Pressure Calibration Method in High-Pressure THz ESR System
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高压太赫兹ESR系统压力校准方法的发展

DOI:
10.1007/s00723-021-01395-2
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发表时间:
2021
影响因子:
1
通讯作者:
Ohta Hitoshi
Ohta Hitoshi
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Sakurai Takahiro;Yasutani Yoshimasa;Sugawara Hitoshi;Okubo Susumu;Ohta Hitoshi

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我们开发了一种在高压太赫兹电渣重熔系统中使用设置在压力盒外部的感应线圈进行压力校准的方法。压力是通过交流(AC)磁化测量设置在压力室内的TiN的超导转变温度与ESR样品进行校准的。该系统适用于研制的压力室,频率范围为0.05-0.8太赫兹。压力范围扩大到2.8 Gpa。将ESR系统应用于著名的Tutton钴盐,首次测定了它在0 GPa时的主值为、和。此外,我们还成功地观察到了这些值随压力的巨大变化。
We have developed a pressure calibration method in the high-pressure THz ESR system using induction coils set outside the pressure cell. The pressure is calibrated using alternating current (AC) magnetization measurements of the superconducting transition temperature of tin set inside the pressure cell with an ESR sample. The system fits the developed pressure cell with a wide frequency range of 0.05–0.8 THz. The pressure range was extended to 2.8 GPa. The ESR system was applied to the well-known cobalt Tutton’s salt, and itsgprincipal values at 0 GPa were determined as,, andfor the first time. Furthermore, we succeeded in observing the large change in thesegvalues with pressure.
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