摘要
本文综述了自旋极化输运过程中巡游电子的自旋极化、自旋相关的散射及自旋弛豫等三方面的内容；全面总结了铁磁金属的磁电阻效应（ＡＭＲ）、磁性金属多层膜和颗粒膜的巨磁电阻效应（ＧＭＲ）、氧化物铁磁体的特大磁电阻效应（ＣＭＲ）以及磁隧道结的巨大隧道电阻效应（ＴＭＲ）研究中具有代表性的实验结果及理论模型；简单介绍了新生的磁电子器件—磁电阻型随机存取存储器（ＭＲＡＭ）和全金属自旋晶体管的工作原理和工作过程。
The present status and development of magneto optical and magnetic storages have been discussed in this paper. Along the lines of the traditional disc drives their maximum recording density can approach to about 10Gbits/in 2. Such a up limitation arises from the recording media and mode especial of the magnetic and optical head to be used. For further increasing the recording density, scanning near field optical microscopy, atomic force, magnetic force and scanning tunnel microscopy could be used to write/erase data. However, it seems to take quite a long time for their practical application. During the increase of the recording density of the magneto optical and magnetic storages, optical storage such as CD ROM (Write Only), CDR(Read only) and PD(Phase Change Disc) have been developed successfully. The practical application of the magnetic and optical storages makes the data storage brilliant and the data storages become today a very important field in the information technology.
出处
《物理学进展》
CSCD
北大核心
1997年第2期119-149,共31页
Progress In Physics
