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1.前言磁光存储器,从五十年代就开始研究。六十年代激光发明后,全世界兴起了磁光热。当时主要研究M_nB_i系列磁性介质。但由于这种材料的居里温度太高,再生性能很差,加之激光器的小型化、高功率输出,以及激光应用技术等问题没有解决,因而,磁光存储器未能实现。到了七十年代,非晶稀土-铁金属合金薄膜材料开发成功,于是,对磁光记录技术的研究又重新活跃起来。1980年,日本国际电信电话公司(KDD)使用改良的非晶GdTbFe合金作记录介质,成功地试制出第一台非品磁光盘机。继而,
1. Introduction Magneto-optical memory, from the fifties began to study. After the invention of the laser in the 1960s, magneto-optical heat emerged all over the world. At that time the main study M_nB_i series of magnetic media. However, due to the Curie temperature of this material is too high, poor reproducibility, coupled with the laser miniaturization, high power output, and laser applications and other issues not resolved, thus, magneto-optical memory failed to achieve. In the seventies, the development of amorphous rare earth-iron metal alloy thin film material was successfully developed, and the research on magneto-optical recording technology was revived again. In 1980, Japan’s International Telecommunication Telephone Company (KDD) successfully used the modified amorphous GdTbFe alloy as a recording medium to successfully produce the first non-magnetic magnetic disk drive. Then,