Experimental study of lubricant depletion in heat assisted magnetic recording: effects of laser heating duration and temperature

被引：7

作者：

Ma, Yansheng ^{[1
]}

Chen, Xiuying ^{[1
]}

Liu, Bo ^{[1
]}

机构：

[1] ASTAR, Data Storage Inst, Singapore 117608, Singapore

来源：

MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2013年 / 19卷 / 02期

关键词：

FOMBLIN-ZDOL; DESORPTION; KINETICS; CARBON; ENERGETICS; SURFACES;

D O I：

10.1007/s00542-012-1668-9

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Heat assisted magnetic recording (HAMR) is a promising approach to overcome the superparamagnetic limit in magnetic recording and enable large increases in the storage density of hard disk drives. However, it is expected that HAMR causes lubricant depletion problem on disk surface under the high temperature in the heating assisted writing process. In this study, the effects of laser heating duration and laser heating temperature on lubricant depletion are studied experimentally. It is found that lubricant depletion depth is linearly proportional to the logarithm of laser heating duration. Lubricant depletion can be mitigated effectively by lowering laser heating temperature. Lubricant depletion depth over the life-time of the drive is also predicted.

引用

页码：291 / 297

页数：7

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