SQUID-ESR studyof Ising magneto-dielectric material under pressure for the stability of its magnetic structure

本文介绍了用商品化的SQUID磁强计进行磁化检测型ESR技术。它的特点是ESR测量非常容易，可以同时进行宏观磁化强度的测量。此外，我们还利用电磁波透射式压力池成功地进行了压力下的SQUID-ESR测量。在该系统中，流行的压力校准方法，利用压力依赖的超导转变温度的锡可以适用。对于Ising型磁介电材料Ca_3CoMnO_6，通过常压下的反铁磁共振得到了系统磁各向异性的详细信息。

The magnetization detection type ESR technique using a commercial SQUID magnetometer has been developed. It has characteristics that ESR measurement can be done very easily and the macroscopic magnetization measurement can be done simultaneously. Moreover, we have performed the SQUID-ESR measurement under pressure successfully by using an electromagnetic wave transmission typepressure cell. In this system the popular pressure calibration method which uses the pressure dependence of the superconducting transition temperature of tin can be applicable. For Ising type magneto-dielectric material Ca_3CoMnO_6, the detailed information about the magnetic anisotropy of the system was obtained from its antiferromagnetic resonance at ambient pressure.