磁光克尔效应实验装置改进与非标软磁材料的矫顽力测量  

Improvement on apparatus of magneto-optic Kerr effect and measurement of coercive force of non-standard soft magnetic materials

作　　者：王春梅[1] 赵振杰[1] 阮建中[1] 李赫[1] 沈国土[1] WANG Chun-mei ZHAO Zhen-jie RUAN Jian-zhong LI He SHEN Guo-tu(School of Physics and Materials Science, East China Normal University, Shanghai 200241, China)

机构地区：[1]华东师范大学物理与材料科学学院,上海200241

出　　处：《物理实验》2016年第11期13-15,19,共4页Physics Experimentation

基　　金：华东师范大学2014年度实验教学设备研制项目资助(No.41000-562930-14203/006)

摘　　要：原有的磁光克尔效应实验装置为分立的磁块光具座,光路调节中可变因素多,调节难度大且精度不高,故只能测量标配样品.针对以上问题,设计了水平可调的光学导轨,通过增加透镜组和串联电阻补偿方法,可显著简化光路调节和提高测量灵敏度,实现了对非标软磁性材料矫顽力的测量.The original magneto-optic Kerr effect experiment device in the lab, with a discrete magnetic optical bench, was difficult to adjust and the precision was low, because of the complexity in light path adjustment. Only standard samples could be measured with it. In this paper, an adjustable optical guide rail was designed and a lens group was inserted to simplify the adjustment of the optical path. Combining with the series resistance compensation method, the sensitivity was further im- proved. The measurement of the coercive force of non-stranded soft magnetic materials was realized.

关 键 词：磁光克尔效应 软磁材料 矫顽力 

分 类 号：O436.4[机械工程—光学工程] O482.5[理学—光学]