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描述了一种热辅助磁盘存储技术,该技术可应用于未来的高密度磁盘存储.记录介质是一种CoNiPt多层膜,它可用作垂直模式的磁记录介质.使用扫描隧道显微镜(STM)产生的隧道电流作为热源对磁膜进行局部加热.隧道电流随着加在STM针尖与磁膜之间的脉冲电压幅值的增大而增大.实验结果显示了圆形记录点在磁膜上生成,记录点尺寸与电压值相关,阈值电压为4V左右.当电压高于阈值时,记录点尺寸随着电压的增大而增大,平均尺寸为170nm;当电压低于阈值时,未发现记录点.一个简单的模型解释了以上实验现象.
Describes a thermally-assisted disk storage technology that can be applied to future high-density disk storage. The recording medium is a CoNiPt multilayer film that can be used as a vertical mode magnetic recording medium. Using a scanning tunneling microscope (STM) The tunneling current is used as a heat source to locally heat the magnetic film.The tunneling current increases with the increase of the pulse voltage amplitude between the STM tip and the magnetic film.The experimental results show that the circular recording point is on the magnetic film Generated, the recording point size is related to the voltage value, the threshold voltage is about 4 V. When the voltage is higher than the threshold, the recording point size increases with the increase of the voltage, the average size is 170 nm; when the voltage is lower than the threshold, no Record points. A simple model explains the above experiment.