Comparison of recording head designs for perpendicular and exchange-coupled composite media

Manish Kapoor, R. H. Victora

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Exchange-coupled composite (ECC) media consisting of hard and soft coupled regions has been predicted to exhibit attempt frequencies that are much larger than conventional perpendicular media due to the presence of two degrees of freedom. As a result, adjacent track erasure (ATE) and archivability are adversely affected, whereas writability is significantly enhanced due to thermal fluctuation assisted recording. Recording heads for ECC and perpendicular media, designed dimensionally for recording at 250 Gbits/In2, are evaluated within this context. In comparison, recording on ECC media is shown to yield about a factor 2 advantage in areal density.

Original languageEnglish (US)
Pages (from-to)2289-2291
Number of pages3
JournalIEEE Transactions on Magnetics
Volume43
Issue number6
DOIs
StatePublished - Jun 1 2007

Keywords

  • Attempt frequency
  • Exchange-coupled composite (ECc) media
  • Perpendicular recording
  • Thermal fluctuations

Fingerprint Dive into the research topics of 'Comparison of recording head designs for perpendicular and exchange-coupled composite media'. Together they form a unique fingerprint.

  • Cite this