Considerations in the design of probe heads for 100 Gbit/in2 recording density

Sakhrat K. Khizroev, James A. Bain, Mark H. Kryder

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Thin film perpendicular playback yoke-GMR heads capable of reading at a density of 100 Gbit/in2 have been designed using 3D boundary element reciprocity modeling. Two basic head types are considered, a single pole and a ring-type geometry. The influence on the playback voltage and D50 of the throat height, fly height, and permeability are studied. Isolated pulse response, roll-off curves, and off-track profiles are calculated. Media with and without a soft underlayer are also considered. The simulations show that of the designs studied the ring head in combination with the media without a soft underlayer has playback properties suitable for this density.

Original languageEnglish (US)
Pages (from-to)2893-2895
Number of pages3
JournalIEEE Transactions on Magnetics
Volume33
Issue number5 PART 1
DOIs
StatePublished - 1997
Externally publishedYes

ASJC Scopus subject areas

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

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