Interface solution for writing-induced nano-deformation of slider body |
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Authors: | Hui Li Bo LiuTow-Chong Chong |
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Affiliation: | Data Storage Institute, 5 Engineering Drive 1, Singapore 117608 |
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Abstract: | Writing-induced nano-deformation of slider body becomes a big concern when the mechanical spacing between the head and disk is continuously reduced to achieve higher magnetic recording areal density. Reduced head–disk spacing increases the risk of head/disk contact and causes the thermal instability in head–disk interface (HDI). This paper reports authors’ efforts towards exploration of interface solutions for writing-induced instability in ultra-low head–disk spacing magnetic system. Multi-shallow step structure with optimized rail position is analyzed and a new femto slider with such structure is explored. The results of numerical simulation indicate that the multi-shallow step structure is an effective approach in reducing the flying height change caused by the writing-induced nano-deformation of the slider body. |
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Keywords: | 05.70.Np |
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