Luo Xin, Zhang Fengling, Li Qiang, Xia Qingtao, Li Zhaohui, Li Xiangkun, Ye Wanneng, Li Shandong, Ge Chen
College of Physics Science, School of Electronic and Information Engineering, Qingdao University, Qingdao 266071, People's Republic of China.
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
J Phys Condens Matter. 2020 May 20;32(33). doi: 10.1088/1361-648X/ab88f7.
The manipulation of magnetism by electrical means is one of the most intensely pursued research topics of recent times aiming at the development of efficient and low-energy consumption devices in spintronics, microelectronics and bioelectronics. Herein, we successfully tuned the saturated magnetization of FeOby a supercapacitor. Through increasing the surface area of magnetic particles and activation of carbon cloth, fully reversible and robust saturation magnetization variation with low power consumption and remarkable switching speed can be realized on FeO/ionic liquid interfaces at room temperature. The associated magnetism modulation can be attributed to ionic transition between Feand Feresulting from both electrostatic and electrochemical doping. This work paves the way for the development of high-performance spintronic devices.
通过电学手段操纵磁性是近年来最受关注的研究课题之一，旨在开发自旋电子学、微电子学和生物电子学领域高效且低能耗的器件。在此，我们成功地通过超级电容器调节了FeO的饱和磁化强度。通过增加磁性颗粒的表面积和激活碳布，在室温下，FeO/离子液体界面上能够实现具有低功耗和显著开关速度的完全可逆且稳定的饱和磁化强度变化。这种相关的磁性调制可归因于Fe和Fe之间由于静电和电化学掺杂导致的离子跃迁。这项工作为高性能自旋电子器件的发展铺平了道路。
