Large voltage-induced magnetic anisotropy change in a few atomic layers of iron.

  title={Large voltage-induced magnetic anisotropy change in a few atomic layers of iron.},
  author={Takuro Maruyama and Yoichi Shiota and Takayuki Nozaki and Koji Ohta and Naoya Toda and Masaki Mizuguchi and Ashwin A. Tulapurkar and Teruya Shinjo and Masashi Shiraishi and Shigemi Mizukami and Yoichi Ando and Yoshishige Suzuki},
  journal={Nature nanotechnology},
  volume={4 3},
In the field of spintronics, researchers have manipulated magnetization using spin-polarized currents. Another option is to use a voltage-induced symmetry change in a ferromagnetic material to cause changes in magnetization or in magnetic anisotropy. However, a significant improvement in efficiency is needed before this approach can be used in memory devices with ultralow power consumption. Here, we show that a relatively small electric field (less than 100 mV nm(-1)) can cause a large change… CONTINUE READING
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