Experimental and numerical simulation study on low-surface energy slider with thermal flying-height control function

Yuki Shimizu, Kyosuke Ono, Noritsugu Umehara, Junguo Xu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number5257349
Pages (from-to)3620-3623
Number of pages4
JournalIEEE Transactions on Magnetics
Volume45
Issue number10
DOIs
Publication statusPublished - 2009 Oct 1
Externally publishedYes

Keywords

  • Head-disk interface
  • Magnetic disk drives
  • Surface energy
  • Touchdown height (TDH

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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