磁场调制直接重写磁光存储介质的记录特性研究  

STUDY ON THE RECORDING PROPERTIES OF OVERWRITE MAGNETO OPTICAL STORAGE MEDIA BY MAGNETIC FIELD MODULATION

作　　者：胡琅[1] 宋惠忠[1] 沈德芳[1] 

机构地区：[1]中国科学院上海冶金研究所

出　　处：《功能材料与器件学报》1998年第3期175-181,共7页Journal of Functional Materials and Devices

摘　　要：用直流共溅射方法制备了富稀土－过渡族金属非晶态合金薄膜。用数值计算的方法计算了激光照射下多层膜结构盘片的温度场分布，分析了盘片材料成分和结构对热磁记录的影响。对盘片结构进行了优化设计并选定了合适的磁光层和电介质层厚度。实验盘片可在低偏场和低激光功率下记录，盘片的读写性能基本符合２５英寸可擦重写磁光盘（ＭｉｎｉＤｉｓｋ）的使用要求。The rich rare earth transition metal amorphous films were prepared by DC double target co sputtering method. The temperature distribution of the multilayer structure magneto optical disk and the effect of the temperature on the thermo magnetic recording were calculated by the numerical method. Choosing the proper thickness of magneto optical and dielectric layers the prepared disks can be recorded by low modulation magnetic field and low laser power, and are suitable for MD audio disk.

关 键 词：非晶态薄膜 磁场调制 直接重写 磁记录材料 

分 类 号：TQ58[化学工程—精细化工]