Cusp-field single-pole head with narrow trailing gap

K. Ise, K. Yamakawa, N. Honda, K. Ouchi, H. Muraoka, Y. Nakamura

Research output: Contribution to journalArticlepeer-review


In perpendicular magnetic recording, improvement of recording resolution of single-pole (SPT) head is considered to be one of the future subjects. In a cusp-field single-pole (CF-SPT) head, it is useful to narrow the trailing gap for improving the recording resolution and also overwrite performance. Furthermore, the CF-SPT head, which has double return-yokes on both sides of the main-pole, is expected to show excellent writability even with a thin soft underlayer (SUL). It is experimentally confirmed that the head with double return-yokes shows high writability combined with a thin SUL medium compared to a head with a single return-yoke. It is concluded that the CF-SPT head with a narrow trailing gap shows a high recording resolution together with a high writability so as to allow the use of a thin SUL productively.

Original languageEnglish
Pages (from-to)376-380
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Issue numberSPEC. ISS.
Publication statusPublished - 2005 Feb


  • Perpendicular magnetic recording
  • Return-yoke
  • Single-pole head
  • Soft underlayer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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