Laser irradiation and its effects on heat transfer in heat assisted magnetic recording
Laser irradiation and its effects on heat transfer in heat assisted magnetic recording
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DOI：
10.1063/1.2185147
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发表时间：
2006-03
影响因子：
1.6
通讯作者：
Sheng-bin Hu;Baoxi Xu
中科院分区：
文献类型：
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作者：
Sheng-bin Hu;Baoxi Xu
热辅助磁记录被认为是克服超顺磁效应和支持太比特/英寸记录的候选方案。然而，激光加热技术给建立可靠稳定的磁头-磁盘接口带来了严峻的挑战。其中之一是如何在滑块巨磁电阻(GMR)传感器中测量厚度约为纳米级的磁盘磁层中的温度。在这篇文章中，我们提出了一种新的方法来测量磁介质和巨磁电阻传感器滑块的温度。它结合了振动扫描磁力仪的材料表征和旋转支架上磁头和磁盘的读/写性能表征。给出了磁盘滑块和局部加热区温升的实验结果。在不同的激光功率照射下，使用具有/不具有磁记录层(一侧)的玻璃基板盘。所有实验都是在Guzik旋转台上进行的，并安装了光学系统。结果..。
Heat assisted magnetic recording is proposed to be a candidate to overcome superparamagnet effect and support terabit∕in.2 recording. However, laser heating technique induces serious challenges to build a reliable and stable head-disk interface. One of them is how to measure the temperature in the disk magnetic layer of which thickness is around the nanometer level and in a slider giant magnetoresistive (GMR) sensor. In this article, we propose a novel method to measure temperature in magnetic media and slider of GMR sensor. It combines material characterization by vibration scanning magnetometer and read/write performance characterization of magnetic head and disk on spin stand. Experimental results of temperature rise in the slider and locally heated region in a magnetic disk are presented. Under various laser power irradiations, glass substrate disks with/without magnetic recording layer (on one side) were used. All experiments were performed on Guzik spin stand with an attached optical system. Results...