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Experimental and Numerical Simulation Study on Low-Surface Energy Slider With Thermal Flying-Height Control Function

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4 Author(s)
Shimizu, Y. ; Central Res. Lab., Fujisawa, Japan ; Ono, K. ; Umehara, N. ; Junguo Xu

The effects of slider surface energy on slider dynamics were investigated with both a component-level experiment and a slider dynamics simulation with a 2-D head-disk interface model. The simulation results clearly show a reduction in the critical flying height, which was defined as the flying-height at the beginning of contact vibration, as same as a reduction in touchdown height observed in the experiment. According to the simulation results, the reduction of slider P2-mode vibration by the adhesion force in the near-contact region is considered to be effective in reducing slider touchdown height. Controlling slider surface energy is necessary for future low-flying head-disk interfaces.

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Magnetics, IEEE Transactions on  (Volume:45 ,  Issue: 10 )