Writing characteristics of pole-trimmed mr heads comprising composite shared poles

Susanna Lee, Young K. Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A 3-dimensional model was developed to better understand the characteristics of pole-trimmed MR write heads using finite element method. Quantitative analyses of recording heads as a function of shared pole structure, gap length and magnetic spacing, and their effects on the recording performance such as overwrite and transition parameter have been studied. In this study, heads with composite shared pole structure (with high Bs top layer) show larger gap field, more symmetric field pattern, smaller transition length, and enhanced overwrite.

Original languageEnglish
Pages (from-to)2505-2507
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number5 PART 1
Publication statusPublished - 1999
Externally publishedYes


  • Composite pole
  • Finite element method
  • Overwrite
  • Write head

ASJC Scopus subject areas

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


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