Magneto-optical recording on CoPtRe alloy films as a novel material

Yoshihiko Takeda, Tomokazu Umezawa, Kiyoshi Chiba, Hiroki Shoji, Migaku Takahashi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Magneto-optical (MO) disks using CoPtRe ternary alloy films have been investigated as a novel recording material for a blue laser recording. For various types of disk structure, the Kerr rotation, the Kerr ellipticity, and the figure of merit were calculated and an optimum structure was estimated. Magneto-optical recordings were made on a CoPtRe MO disk at wavelengths of 830 and 530 nm. The recording properties were almost equivalent to those for Co/Pt multilayers.

Original languageEnglish
Pages (from-to)2166-2171
Number of pages6
JournalIEEE Transactions on Magnetics
Issue number4
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

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


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