Y. Man, B. Liu, K. K. Ng, S. Yu, S. K. Sinha and S. C. Lim, "Investigations of Light Contact and Lube-Surfing State With Electrical Current," in IEEE Transactions on Magnetics, vol. 50, no. 11, pp. 1-4, Nov. 2014.
Abstract:
It was reported that a thermal flying height control (TFC) slider often exhibits a strong bouncing vibration at the touchdown power (TDP), which is suddenly suppressed when the TFC power is increased beyond the TDP. This phenomenon is inferred to be the lube-surfing state during which the slider’s dynamics are damped out by the lubricant, and its attitude adjusted so as to achieve a second stable flying state with a tiny bulge surfing in the lubricant. In this paper, the measured current with respect to a full view of the second stable flying state during touchdown, lube-surfing, and takeoff processes of the specific TFC slider will be
characterized for in-depth understanding of light lubricant contact.
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