Direct measurement of lubricant relaxation on a disk surface

被引：7

作者：

Pit, R ^{[1
]}

Marchon, B ^{[1
]}

机构：

[1] IBM, Almaden Res Ctr, San Jose, CA 95120 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2001年 / 37卷 / 04期

关键词：

diffusion coefficient; head-disk interface; lubricant; lubricant moguls; optical surface analyzer;

D O I：

10.1109/20.950981

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：

This paper presents a novel method for studying the relaxation characteristics of a molecularly thin lubricant film. The thickness dependent diffusion constant is measured by monitoring the temporal decay of a lubricant film thickness with a well-controlled initial sinusoidal thickness modulation. The lubricant film thickness can also be modulated by flying a slider in seek mode, creating a 2D "mogul" pattern. Using the previously measured diffusion coefficients, the relaxation of these moguls is simulated and compared with the experimental relaxation images obtained with an Optical Surface Analyzer.

引用

页码：1830 / 1832

页数：3

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