Current-induced magnetization switching at low current densities in current-perpendicular-to-plane structural Fe3Si/FeSi2 artificial lattices

Ken Ichiro Sakai, Yuta Noda, Takeshi Daio, Daiki Tsumagari, Aki Tominaga, Kaoru Takeda, Tsuyoshi Yoshitake

    Research output: Contribution to journalArticle

    Abstract

    Current-perpendicular-to-plane (CPP) junctions of Fe3Si/ FeSi2 were fabricated from Fe3Si/FeSi2 artificial lattice films, which were prepared by facing-target direct-current sputtering, by employing a focused ion beam (FIB) technique. CPP structurization was confirmed by scanning electron microscopy. The CPP junctions, in which antiferromagnetic interlayer coupling is induced between the Fe3Si layers, exhibited a clear hysteresis loop in the electrical resistance for current injection, which is probably due to current-induced magnetization switching. The critical current density for it is approximately 3.3 × 101A/cm2, which is at least four orders smaller than the values that have ever been reported.

    Original languageEnglish
    Article number02BC15
    JournalJapanese journal of applied physics
    Volume53
    Issue number2 PART 2
    DOIs
    Publication statusPublished - Feb 27 2014

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    Facings
    Acoustic impedance
    Focused ion beams
    Induced currents
    low currents
    Hysteresis loops
    Sputtering
    Magnetization
    Current density
    current density
    magnetization
    Scanning electron microscopy
    electrical resistance
    interlayers
    critical current
    sputtering
    direct current
    ion beams
    hysteresis
    injection

    All Science Journal Classification (ASJC) codes

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

    Cite this

    Current-induced magnetization switching at low current densities in current-perpendicular-to-plane structural Fe3Si/FeSi2 artificial lattices. / Sakai, Ken Ichiro; Noda, Yuta; Daio, Takeshi; Tsumagari, Daiki; Tominaga, Aki; Takeda, Kaoru; Yoshitake, Tsuyoshi.

    In: Japanese journal of applied physics, Vol. 53, No. 2 PART 2, 02BC15, 27.02.2014.

    Research output: Contribution to journalArticle

    Sakai, Ken Ichiro ; Noda, Yuta ; Daio, Takeshi ; Tsumagari, Daiki ; Tominaga, Aki ; Takeda, Kaoru ; Yoshitake, Tsuyoshi. / Current-induced magnetization switching at low current densities in current-perpendicular-to-plane structural Fe3Si/FeSi2 artificial lattices. In: Japanese journal of applied physics. 2014 ; Vol. 53, No. 2 PART 2.
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    AU - Daio, Takeshi

    AU - Tsumagari, Daiki

    AU - Tominaga, Aki

    AU - Takeda, Kaoru

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