Optimasation of CoNi/Pt multilayers compared with Co/Pt multilayers for thermomagnetic writing

Q. Meng, D.M. Donnet, P.J.A. van Schendel, J.C. Lodder, Th.J.A. Popma

    Research output: Contribution to journalConference articleAcademicpeer-review

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    Abstract

    The optimisation of sputtered CoNi/Pt multilayers for thermomagnetic writing has been studied with relation to the layer thickness, film structures and sputtering conditions. It was found that the writing was more easily performed in CoNi/Pt multilayers than Co/Pt multilayers because of lower Curie temperature in CoNi/Pt multilayers. The films deposited at a lower Ar pressure displayed sharp magnetisation reversal that results in the sharp domain boundaries around the written domains. The films deposited at a higher Ar pressure showed the undesirable microstructures and unsuitable magnetic properties which result in the worse written domains. The large perpendicular coercivity obtained in the film deposited at higher Ar pressure is attributed to the large voids in the film.
    Original languageEnglish
    Pages (from-to)53-56
    Number of pages4
    JournalJournal of the Magnetics Society of Japan
    Volume20
    Issue numberSuppl. 1
    DOIs
    Publication statusPublished - 1996
    Event4th Magneto-Optical Recording International Symposium, MORIS 1996 - Leeuwenhorst Conference Centre, Noordwijkerhout, Netherlands
    Duration: 29 Apr 19962 May 1996
    Conference number: 4

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    coercivity
    Curie temperature
    voids
    film thickness
    low pressure
    sputtering
    magnetic properties
    magnetization
    microstructure
    optimization

    Keywords

    • SMI-MAT: MATERIALS
    • SMI-TST: From 2006 in EWI-TST

    Cite this

    Meng, Q. ; Donnet, D.M. ; van Schendel, P.J.A. ; Lodder, J.C. ; Popma, Th.J.A. / Optimasation of CoNi/Pt multilayers compared with Co/Pt multilayers for thermomagnetic writing. In: Journal of the Magnetics Society of Japan. 1996 ; Vol. 20, No. Suppl. 1. pp. 53-56.
    @article{38661c628b76478e8247b9bd31174136,
    title = "Optimasation of CoNi/Pt multilayers compared with Co/Pt multilayers for thermomagnetic writing",
    abstract = "The optimisation of sputtered CoNi/Pt multilayers for thermomagnetic writing has been studied with relation to the layer thickness, film structures and sputtering conditions. It was found that the writing was more easily performed in CoNi/Pt multilayers than Co/Pt multilayers because of lower Curie temperature in CoNi/Pt multilayers. The films deposited at a lower Ar pressure displayed sharp magnetisation reversal that results in the sharp domain boundaries around the written domains. The films deposited at a higher Ar pressure showed the undesirable microstructures and unsuitable magnetic properties which result in the worse written domains. The large perpendicular coercivity obtained in the film deposited at higher Ar pressure is attributed to the large voids in the film.",
    keywords = "SMI-MAT: MATERIALS, SMI-TST: From 2006 in EWI-TST",
    author = "Q. Meng and D.M. Donnet and {van Schendel}, P.J.A. and J.C. Lodder and Th.J.A. Popma",
    year = "1996",
    doi = "10.3379/jmsjmag.20.S1_53",
    language = "English",
    volume = "20",
    pages = "53--56",
    journal = "Journal of the Magnetics Society of Japan",
    issn = "0285-0192",
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    number = "Suppl. 1",

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    Optimasation of CoNi/Pt multilayers compared with Co/Pt multilayers for thermomagnetic writing. / Meng, Q.; Donnet, D.M.; van Schendel, P.J.A.; Lodder, J.C.; Popma, Th.J.A.

    In: Journal of the Magnetics Society of Japan, Vol. 20, No. Suppl. 1, 1996, p. 53-56.

    Research output: Contribution to journalConference articleAcademicpeer-review

    TY - JOUR

    T1 - Optimasation of CoNi/Pt multilayers compared with Co/Pt multilayers for thermomagnetic writing

    AU - Meng, Q.

    AU - Donnet, D.M.

    AU - van Schendel, P.J.A.

    AU - Lodder, J.C.

    AU - Popma, Th.J.A.

    PY - 1996

    Y1 - 1996

    N2 - The optimisation of sputtered CoNi/Pt multilayers for thermomagnetic writing has been studied with relation to the layer thickness, film structures and sputtering conditions. It was found that the writing was more easily performed in CoNi/Pt multilayers than Co/Pt multilayers because of lower Curie temperature in CoNi/Pt multilayers. The films deposited at a lower Ar pressure displayed sharp magnetisation reversal that results in the sharp domain boundaries around the written domains. The films deposited at a higher Ar pressure showed the undesirable microstructures and unsuitable magnetic properties which result in the worse written domains. The large perpendicular coercivity obtained in the film deposited at higher Ar pressure is attributed to the large voids in the film.

    AB - The optimisation of sputtered CoNi/Pt multilayers for thermomagnetic writing has been studied with relation to the layer thickness, film structures and sputtering conditions. It was found that the writing was more easily performed in CoNi/Pt multilayers than Co/Pt multilayers because of lower Curie temperature in CoNi/Pt multilayers. The films deposited at a lower Ar pressure displayed sharp magnetisation reversal that results in the sharp domain boundaries around the written domains. The films deposited at a higher Ar pressure showed the undesirable microstructures and unsuitable magnetic properties which result in the worse written domains. The large perpendicular coercivity obtained in the film deposited at higher Ar pressure is attributed to the large voids in the film.

    KW - SMI-MAT: MATERIALS

    KW - SMI-TST: From 2006 in EWI-TST

    U2 - 10.3379/jmsjmag.20.S1_53

    DO - 10.3379/jmsjmag.20.S1_53

    M3 - Conference article

    VL - 20

    SP - 53

    EP - 56

    JO - Journal of the Magnetics Society of Japan

    JF - Journal of the Magnetics Society of Japan

    SN - 0285-0192

    IS - Suppl. 1

    ER -