Physics of perpendicular magnetic recording: Writing process

S. Khizroev, Y. Liu, K. Mountfield, M. H. Kryder, D. Litvinov

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


The theoretical principles developed to choose dimensions and materials were experimentally verified using a wafer test structure and spin-stand experiments with a 60 nm wide focused ion beam trimmed head. The magnetic imaging by the soft underlayer (SUL) in perpendicular recording possess the property which does not exist in longitudinal recording. The results showed that for achieving areal densities above 100 Gbit/in2 using perpendicular recording with a (SUL), it is critical to have the SUL with the magnetic moment equal or larger than the moment of the recording pole tip.

Original languageEnglish (US)
Pages (from-to)335-344
Number of pages10
JournalJournal of Magnetism and Magnetic Materials
Issue number1-2
StatePublished - Apr 2002
Externally publishedYes


  • Focused ion beam (FIB)
  • Magnetic recording
  • Perpendicular recording

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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