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arXiv · 0905.0185

Voltage-assisted Magnetization Switching in Ultrathin Fe80Co20 Alloy Layers

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.

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Yoichi Shiota, Takuto Maruyama, Takayuki Nozaki, Teruya Shinjo, Masashi Shiraishi, Yoshishige Suzuki. 2009-05-02. Voltage-assisted Magnetization Switching in Ultrathin Fe80Co20 Alloy Layers. https://doi.org/10.1143/apex.2.063001

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