Slider vibration reduction using slider surface texture |
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Authors: | Lin Zhou Michael Beck Hans H. Gatzen Kenneth J. Altshuler Frank E. Talke |
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Affiliation: | 1. Center for Magnetic Recording Research, University of California, 9500 Gilman Drive, La Jolla, San Diego, CA, 92093-0401, USA 2. Institute for Microtechnology, Hannover University, Callinstrasse 30a, 30167, Hannover, Germany 3. Seagate Storage Products, 2400 Trade Center, M/S, Longmont, CO, 80503, USA
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Abstract: | Surface texture with a height of 4.5 nm was fabricated on two types of pico-sliders using argon plasma etching. The nominal flying height of the sliders was 5 and 7 nm, respectively. Laser Doppler vibrometry (LDV) was used to investigate the dynamics of the textured and untextured sliders during steady-state flying and during contact start/stop (CSS). During steady-state flying, the texture was found to significantly reduce both rigid body slider vibration modes and air-bearing modes. During CSS, the amplitude of both out-of-plane and in-plane vibrations was found to be reduced as a consequence of the texture on the slider surfaces. |
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