Flying stability of a slider with a damaged diamond like carbon layer induced by confined optical energy in a thermally assisted magnetic recording system

Jonghak Choi, Kyoung Su Park, No Cheol Park, Young Pil Park

Research output: Contribution to journalArticle

Abstract

Thermally assisted magnetic recording (TAMR) is one possible solution for overcoming the limitation of higher storage density. However, in TAMR systems, several problems arise in association with the heat generated by the laser. This paper investigates the effect of damaged diamond like carbon (DLC) layer induced by confined optical energy in TAMR slider using derived equation of material loss in DLC layer. It is found that because of the confined optical energy in the near field transducer, DLC layer under the bottom of the slider can be damaged. The damaged DLC layer can lead the increment of flying height and decrement of pitch angle. These changes of slider attitude change the air bearing stiffness (ABS) between slider and disk. As the result, the changed ABS has a bad effect on the flying stability of the slider. And in higher energy, the effect is intensified.

Original languageEnglish
Pages (from-to)2509-2515
Number of pages7
JournalMicrosystem Technologies
Volume21
Issue number12
DOIs
Publication statusPublished - 2015 Apr 3

Fingerprint

Diamond
Magnetic recording
magnetic recording
chutes
Diamonds
Bearings (structural)
Carbon
diamonds
flight
carbon
gas bearings
Stiffness
stiffness
energy
Air
pitch (inclination)
Transducers
near fields
transducers
Lasers

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

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Flying stability of a slider with a damaged diamond like carbon layer induced by confined optical energy in a thermally assisted magnetic recording system. / Choi, Jonghak; Park, Kyoung Su; Park, No Cheol; Park, Young Pil.

In: Microsystem Technologies, Vol. 21, No. 12, 03.04.2015, p. 2509-2515.

Research output: Contribution to journalArticle

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