Co-P electrodeposited alumite films with in-plane magnetization

Hideo Daimon, Osamu Kitakami, Osamu Inagoya, Akito Sakemoto, Kunio Mizushima

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The magnetic properties and corrosion resistance of a magnetic alumite film, in which micropores are filled with Co, are investigated. It is found that in-plane magnetizatlon film is obtained by adding a small amount of P to the Co. For example, the effective anisotropy energy of the film changes from +0.44×105 erg/cm3 to -1.32×105 erg/cm3 by the addition of 8 at.% P. The in-plane coercivity of the film can be controlled between 340 Oe and 1350 Oe by the P content. The corrosion resistance of the film filled with Co94P6 under the atmosphere of 40°C, 90% R. H. with 10 ppm SO2 gas is tested. The corrosion resistance of the film under this condition is superior to that of sputtered Co-Ni thin film media with a carbon protective layer. Magnetic alumite film filled with Co-P alloy is considered to be a candidate for longitudinal magnetic recording media.

Original languageEnglish
Pages (from-to)1675-1679
Number of pages5
JournalJapanese journal of applied physics
Issue number9R
Publication statusPublished - 1990 Sep
Externally publishedYes


  • Co-electrodeposited alumite films
  • Corrosion resistance
  • In-plane magnetization film
  • Magnetic properties

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


Dive into the research topics of 'Co-P electrodeposited alumite films with in-plane magnetization'. Together they form a unique fingerprint.

Cite this