大克尔角磁光材料测试系统试验研究

Study of a testing system for magneto optical materials with large Kerr rotation

磁光存储系统中，存储信息的介质———磁光材料膜的读／写性能直接影响了系统信噪比和信号质量，直接擦写等性能指标，因此，研制和开发高性能磁光材料是改善系统性能的直接手段。本文介绍了一个磁光材料读／写性能测试系统以及利用该装置对大克尔角磁光材料ＭｎＢｉＡｌ样品进行的静态读／写试验。

In magneto optical (M O) storage system,the read/write characteristics of the recording media,(M O) material film,has direct effects on the performance of M O storage system,such as SNR,quality of readout signals,direct erase/rewrite processing,etc.As a result,developing new M O materials with good read/write characteristics could improve the performance of M O storage system.In this paper,a system for testing read/write characteristics of M O materials is presented.Static read/write tests have been applied to the new M O materials,MnBiAl,which has large Kerr rotation.The experimental results give useful data for the improvement of read/write characteristics and the study of the practicality of this new M O materials.