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.

Volume Subject Area:
Tribology, Head/Media Interface
Topics:
Evaporation, Heat, Heating, Lasers, Lubricants, Magnetic recording, Molecular dynamics, Disks, Molecular dynamics simulation, Power density, Thermal stability
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