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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２５英寸可擦重写磁光盘（ＭｉｎｉＤｉｓｋ）的使用要求。
The rare earth-transition metal-rich amorphous alloy films were prepared by direct current co-sputtering. The temperature field distribution of the multilayered structure was calculated by numerical calculation. The influence of the composition and structure of the plate on the thermomagnetic recording was analyzed. The structure of the disk was optimized and the thickness of the magneto-optical layer and the dielectric layer were chosen. Experimental disc can be recorded at low bias and low laser power, read and write performance of the disc is basically in line with the requirements of 2 5-inch rewritable magneto-optical disk (MiniDisk).