Correlation between magnetic properties and phase-separated microstructure of electroless CoNiP perpendicular magnetic recording media

Takayuki Homma, Tetsuya Osaka, Y. Yamazaki, T. Namikawa

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Abstract

Correlation between magnetic and structural properties of electroless-deposited CoNiP films for the use of perpendicular magnetic recording media was studied, focusing upon their phase-separated structure in nanometer scale. The media with various perpendicular coercivity, Hc(⊥), were examined and it was clarified that higher Hc(⊥) medium showed a clearer phase-separated condition, which was confirmed by the selective chemical-etching technique. It was strongly indicated that such a structure plays an important role in attaining a high Hc(⊥) and in forming an hcp structure in a film with a Ni-rich average composition.

Original languageEnglish
Pages (from-to)1569-1573
Number of pages5
JournalScripta Metallurgica et Materiala
Volume33
Issue number10-11
DOIs
Publication statusPublished - 1995 Dec 1

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ASJC Scopus subject areas

  • Engineering(all)

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