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将来 ,利用原子磁矩的计算机硬盘和其它数据存储装置可能会快 1 0倍以上。美国布朗大学和国际商业机器公司阿尔梅登研究中心的研究人员已发明一种用超短激光脉冲使薄磁性材料层内原子排列逆转的方法。计算机磁盘和声 (磁 )带之类的记录介质 ,其表面含有分成小磁畴的薄层。通过
In the future, computer hard disks and other data storage devices utilizing atomic magnetic moments may be 10 times faster. Researchers at the Brown University and the Almeden Research Center of the International Business Machines Corporation have invented a method of reversing the arrangement of atoms in thin magnetic layers using ultrashort laser pulses. A recording medium such as a computer disk and an acoustic (magnetic) tape has a surface containing a thin layer divided into small magnetic domains. by