Voltage-assisted Magnetization Switching in Ultrathin Fe80Co20 Alloy Layers

Yoichi Shiota; Takuto Maruyama; Takayuki Nozaki; Teruya Shinjo; Masashi Shiraishi; Yoshishige Suzuki

doi:10.1143/APEX.2.063001

Voltage-assisted Magnetization Switching in Ultrathin Fe80Co20 Alloy Layers

Materials Science 2015-05-13 v1 Other Condensed Matter

Authors: Yoichi Shiota , Takuto Maruyama , Takayuki Nozaki , Teruya Shinjo , Masashi Shiraishi , Yoshishige Suzuki

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Abstract

Growing demands for the voltage-driven spintronic applications with ultralow-power consumption have led to new interest in exploring the voltage-induced magnetization switching in ferromagnetic metals. In this study, we observed a large perpendicular magnetic anisotropy change in Au(001) / ultrathin Fe80Co20(001) / MgO(001) / Polyimide / ITO junctions, and succeeded in realizing a clear switching of magnetic easy axis between in-plane and perpendicular directions. Furthermore, employing a perpendicularly magnetized film, voltage-induced magnetization switching in the perpendicular direction under the assistance of magnetic fields was demonstrated. These pioneering results may open a new window of electric-field controlled spintronics devices.

Keywords

voltage-assisted magnetization switching perpendicular magnetic anisotropy Fe80Co20 alloy ultrathin films spintronics electric-field control

Cite

@article{arxiv.0905.0185,
  title  = {Voltage-assisted Magnetization Switching in Ultrathin Fe80Co20 Alloy Layers},
  author = {Yoichi Shiota and Takuto Maruyama and Takayuki Nozaki and Teruya Shinjo and Masashi Shiraishi and Yoshishige Suzuki},
  journal= {arXiv preprint arXiv:0905.0185},
  year   = {2015}
}

Voltage-assisted Magnetization Switching in Ultrathin Fe80Co20 Alloy Layers

Abstract

Keywords

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