射频电子顺磁共振实验仪  

DEVELOPMENT OF RADIO FREQUENCY ELECTRON PARAMAGNETIC RESONANCE EXPERIMENTAL INSTRUMENT

作　　者：吴春姬[1] 纪红[1] 刘天舒 徐智博[1] 张剑楠[1] 王鑫[1] WU Chunji;JI Hong;LIU Tianshu;XU Zhibo;ZHANG Jiannan;WANG Xin(College of Physics,Jilin University,Changchun,Jilin 130012)

机构地区：[1]吉林大学物理学院,吉林长春130012

出　　处：《物理与工程》2021年第6期101-104,共4页Physics and Engineering

基　　金：国家级青年基金:高压下铁系元素及合金宏观铁磁稳定性研究(批准号:11804113)。

摘　　要：本文研制的射频段电子顺磁共振实验仪相比于微波段电子顺磁共振实验仪频率小,因此所需磁场小,仅用简单的亥姆霍兹线圈就可以满足实验的需求,可以测量g因子和共振线宽,还可以测量地磁场矢量。本实验仪结构简单、安全、经济实用,用示波器可以观察到共振信号,由此,学生对电子顺磁共振现象具有直观、准确的认识。Compared with the microwave electron paramagnetic resonance(EPR)experiment instrument,the radio frequency(RF)EPR experiment instrument developed in this paper has the lower frequency,so it needs smaller magnetic field.Only a simple Helmholtz coil can meet the needs of the experiment.It not only can measure g factor and resonance linewidth,but also can measure the geomagnetic field vector.The RF EPR experiment instrument has advantages in simple structure,safe,economical and practical.The resonance signal can be observed by an oscilloscope,so that students have an intuitive and accurate understanding of EPR phenomenon.

关 键 词：电子顺磁共振 G因子 共振线宽 地磁场 

分 类 号：O441.4[理学—电磁学]