Application of the colloid-sem method to observations on perpendicular magnetic recordings

Kimiyoshi Goto, Tomoaki Sakurai, Osamu Kitakami

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The colloid-SEM method, a modified Bitter method using SEM, has been applied to observations on perpendicular magnetic recordings. The recording media were vacuum-evaporated Co-24, 0 wt%Cr films of about 2000 A in thickness with recording densities of 150 to 300 kBPI. It is found that in order to obtain clear recorded patterns a magnetic field less than 500 Oe must be applied perpendicularly to the film plane during the deposition of a magnetite colloidal solution. Recorded patterns obtained by this method are shown and conditions for better patterns by the col1oid-SEM method are suggested.

Original languageEnglish
Pages (from-to)2365-2367
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 1987 Sep

ASJC Scopus subject areas

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


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