The role of the gap in single pole heads in perpendicular recording

D. Litvinov, J. Wolfson, J. A. Bain, R. W. Gustafson, M. H. Kryder, S. Khizroev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is commonly believed that to achieve high recording performance, the gap between the leading and trailing poles in a single pole head (SPH) has to be long with respect to the. Such an SPH is referred to as type I. An SPH in which the gap length is small air bearing surface (ABS) to soft underlayer (SUL) spacing with respect to SUL-to-ABS spacing is referred to as type II. In this work, the recording characteristics of type II and type I SPHs are compared. For clarity, SPH and RH imply the presence and the absence of a SUL, respectively. It should be stressed that recording on a medium with a RH is fundamentally different from recording with a SPH. In recording with a SPH, the writing is done by the trailing edge of the trailing pole. This is in contrast to recording with a RH, in which the writing is done by the trailing edge of the gap. A conventional RH used to write onto a medium with a SUL acts as a type II SPH.

Original languageEnglish (US)
Title of host publicationINTERMAG Europe 2002 - IEEE International Magnetics Conference
EditorsJ. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)0780373650, 9780780373655
DOIs
StatePublished - 2002
Externally publishedYes
Event2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands
Duration: Apr 28 2002May 2 2002

Publication series

NameINTERMAG Europe 2002 - IEEE International Magnetics Conference

Conference

Conference2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Country/TerritoryNetherlands
CityAmsterdam
Period4/28/025/2/02

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Surfaces, Coatings and Films

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