Magnetic and magneto-optical properties of CoPtM (M = Re, Ru) alloy films for a new magneto-optical recording material

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

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    CoPtM (M = Re, Ru) ternary alloy films have been investigated as new magneto-optical materials for blue laser recording. The CoPtRe and CoPtRu alloy films were prepared by sputtering without a heating process, and exhibited good perpendicular magnetic anisotropy and magnetic hysteresis loop squareness. For the magneto-optical properties, the figure of merit for the CoPtRe alloy film with less than 15 at% Re at λ < 530 nm is shown to be superior to that for TbFeCo amorphous film and inferior 0-4 dB to that of Co/Pt multilayers.

    Original languageEnglish
    Pages (from-to)243-252
    Number of pages10
    JournalJournal of Magnetism and Magnetic Materials
    Volume152
    Issue number1-2
    DOIs
    Publication statusPublished - 1996 Jan

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Fingerprint Dive into the research topics of 'Magnetic and magneto-optical properties of CoPtM (M = Re, Ru) alloy films for a new magneto-optical recording material'. Together they form a unique fingerprint.

    Cite this