Effect of side shields on neighbor-induced transition shift in perpendicular magnetic recording

Manish Kapoor, Sissay G. Yoseph, Randall H Victora

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

The use of side shields is considered for the purpose of countering the neighbor-induced transition shift (NITS) in perpendicular magnetic recording. Two kinds of shield geometries are incorporated in the micromagnetic model. It is shown that, while the shields are ineffective against the worst case scenario, one shield design is highly effective in a less restrictive situation. It is further shown that the benefits (∼65% reduction of NITS) only occur over a restricted range of shield saturation magnetization (Ms). Optimal shield Ms is found to be in the range of 500-800 emucc.

Original languageEnglish (US)
Article number162517
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume87
Issue number16
DOIs
StatePublished - Oct 17 2005

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