Development of High-Field ESR System Using SQUID Magnetometer and its Application to Measurement under High Pressure

作者：Sakurai T^*; Fujimoto K; Okubo S; Ohta H; Uwatoko Y

来源：Journal of Magnetics, 2013, 18(2): 168-172.

DOI：10.4283/JMAG.2013.18.2.168

• ESR
• high field
• magnetization detection
• SQUID
• pressure cell

We have developed a high-field and high-frequency ESR system using a commercially available magnetometer equipped with the superconducting quantum interference device (SQUID). This is magnetization detection type ESR and ESR is observed as a change of the magnetization at the resonance condition under irradiation of the electromagnetic wave. The frequency range is from 70 to 315 GHz and the maximum magnetic field is 5 T. The sensitivity is estimated to be 10(13) spins/G The advantage of this system is that the high-field ESR measurements can be made very easily and quantitatively. Moreover, this high-field ESR can be applied to the measurements under pressure by using a widely used piston-cylinder pressure cell.

• 出版日期2013-6