MOLECULAR DYNAMICS STUDY OF LUBRICANT EVAPORATION AND FRAGMENTATION IN HEAT-ASSISTED MAGNETIC RECORDING WITH PULSED LASER HEATING

YW Seo and A Rosenkranz and K Morris and FE Talke, PROCEEDINGS OF THE ASME 26TH ANNUAL CONFERENCE ON INFORMATION STORAGE AND PROCESSING SYSTEMS, 2017, UNSP V001T01A017 (2017).

Molecular dynamics simulations are performed to investigate the effect of high frequency laser heating on the thermal stability of lubricant on a disk surface. Lubricant morphology, lubricant evaporation, and lubricant fragmentation are studied as a function of laser pulse duration, power density, and frequency. The results show that lubricant depletion increases with laser pulse duration.

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