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Showing 1–3 of 3 results
Advanced filters: Author: Amran Mahfudh Yatmeidhy Clear advanced filters

  • Schematic illustrations of the changes in the magnetic anisotropy by an applied electric field (E) in the strain directions are displayed. Under an applied E, the piezoelectric stress in the ferroelectric PMN-PT could be introduced in the tensile and compressive directions using positive and negative bias voltages, respectively, resulting in the changes in the magnetic anisotropy in the Co2FeSi layer. The XMCD spectra of Fe and Co L-edges in Co2FeSi under applying E showed the line shape changes only in the Fe site, which corresponds to the changes of orbital magnetic moment in Fe, while that in Co remains unchanged.

    • Jun Okabayashi
    • Takamasa Usami
    • Kohei Hamaya
    ResearchOpen Access
    NPG Asia Materials
    Volume: 16, P: 1-10

  • We show giant converse magnetoelectric effect in a multiferroic heterostructure consisting of ferromagnetic Heusler alloy Co2FeSi and ferroelectric-oxide Pb(Mg1/3Nb2/3)O3-PbTiO3 for an electric-field control of magnetization vectors. In this system, the non-volatile and repeatable magnetization vector switchings in remanent states are also demonstrated. This approach can lead to a new solution to the reduction in the write power in spintronic memory architectures at room temperature.

    • Shumpei Fujii
    • Takamasa Usami
    • Kohei Hamaya
    ResearchOpen Access
    NPG Asia Materials
    Volume: 14, P: 1-11