テラへルッESRの磁性研究への展開

摘要

The fundamental aspects of electron spin resonance (ESR) up to the terahertz range and a terahertz ESR system we developed are presented. The system covers a frequency region from 30 GHz to 7 THz, using a pulsed magnetic field up to 55 T. A pressure of up to 1.4 GPa can also be applied by using our transmissiontype pressure cell. A new micro-cantilever we developed enables the ESR of a micrometer size magnetic sample to be detected and is promising for future applications to nanoscience. Finally, the applications of the terahertz ESR to the study of magnetism are also discussed.